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Allergies - Who, Why, What & When

23/7/2018

10 Comments

 
Sneezing is not always the symptom of a cold. Sometimes, it is an allergic reaction to something in the air. Health experts estimate that over 10% of people suffer from upper respiratory tract symptoms that are allergic reactions to airborne allergens.
​Overall, allergic diseases are increasing and are among the major causes of illness and disability, affecting as many 40% of children and 30% of adults.
Airora helps with airbourne allergies
Pollen allergy, commonly called hay fever, is one of the most common chronic diseases. Worldwide, airborne allergens cause the most problems for people with allergies. The respiratory symptoms of asthma, which affect approximately one in twelve people, are often provoked by airborne allergens.
​Although the number of people suffering with an allergy has increased in the last few decades, there is more education and a greater understanding of the immense impact that allergies have on our lives, from allergy symptoms to causes to treatments.
There is no clear explanation for the increase in allergies; however there are two main theories. The first theory is that awareness and diagnosis have improved in recent years and the second is that the increase in general air pollution and indoor air pollution have made allergens more common.
Allergies

An allergy is characterised by an overreaction of the human immune system to a foreign protein substance (“allergen”) that is eaten, breathed into the lungs, injected or touched and which otherwise does not bother most people.
​This immune overreaction can results in symptoms such as coughing, sneezing, itchy eyes, runny nose and scratchy throat. In severe cases it can also result in rashes, hives, lower blood pressure, difficulty breathing, asthma attacks, and even death.
​​People who have allergies often are sensitive to more than one substance. Types of natural allergens that cause allergic reactions include:
  • Pollens
  • House dust mites
  • Mould spores
  • ​Food
  • Latex rubber
  • Insect venom
Allergy is not necessarily the same as sensitivity or intolerance to a substance. This is particularly so in the area of food where, for example, lactose intolerance is not classed as a food allergy because the symptoms do not arise from the immune system.
Allergy sufferers

Scientists think that some people inherit a tendency to be allergic from one or both parents. This means they are more likely to have allergies. They probably, however, do not inherit a tendency to be allergic to any specific allergen. Children are more likely to develop allergies if one or both parents have allergies. In addition, exposure to allergens at times when the body’s defences are lowered or weakened, such as after a viral infection or during pregnancy, seems to contribute to developing allergies.
Allergic reactions 

Normally, the immune system functions as the body’s defence against invading germs such as bacteria and viruses. In allergic reactions, the immune system is responding to a false alarm. When an allergic person first comes into contact with an allergen, the immune system treats the allergen as an invader and gets ready to attack.
The immune system does this by generating large amounts of immunoglobulin E (IgE), a type of antibody. ​
Airora stops allergic reactions
Each IgE antibody is specific to one particular substance. In the case of pollen allergy, each antibody is specific for one type of pollen.
IgE is special because it is the only type of antibody that attaches tightly to the body’s mast cells, which are tissue cells, and to basophils, which are blood cells. When the allergen next encounters its specific IgE, it attaches to the antibody like a key fitting into a lock. This action signals the cell to which the IgE is attached to release powerful chemicals, including histamine, which cause the symptoms of allergy.
Symptoms

The symptoms of airborne allergies are familiar to most people:
  • sneezing
  • itchy nose and / or throat
  • nasal congestion
  • coughing
  • itchy, watery eyes
  • ​dark circles under eyes
In people who are not allergic, the mucus in the nasal passages simply moves foreign particles to the throat, where they are swallowed or coughed out. But something different happens in a person who is sensitive to an airborne allergen.
In sensitive people, as soon as the allergen lands on the lining inside the nose, a chain reaction occurs that leads the mast cells in these tissues to release powerful chemicals, including histamine. These powerful chemicals contract certain cells that line some small blood vessels in the nose, causing fluids to escape and the nasal passages to swell—resulting in nasal congestion. Histamine can also cause sneezing, itching, irritation, and excess mucus production, which can result in allergic rhinitis. ​
Asthma symptoms
Some people with an allergy develop asthma, which can be a very serious condition, whose symptoms include:
  • Coughing
  • Wheezing
  • Shortness of breath
The shortness of breath is due to a narrowing of the airways in the lungs and to excess mucus production and inflammation. Asthma can be disabling and potentially fatal. 
Risk factors

​Genetics: The risk of having an allergy amongst the general population is around 10-20%. However, If one parent is allergic, a child’s risk rises to 50% and if both parents are allergic, to 75%.
Age, sex, and siblings: On average, children are more likely to suffer from allergy than adults (children can sometimes ‘grow out of’ allergic disease) and the onset can occur at any age. More boys than girls have atopic asthma and hay fever, although this difference reduces in adult life. Children from large families and those with older siblings are less likely to develop allergies, probably because they are more exposed to childhood infection, which makes the developing immune system less likely to over-react to an allergen.
Early-life, or extreme/sudden, allergen exposure: It has been suggested that exposure to allergens like cigarette smoke, traffic pollution, dust, pollen, mould and pet dander in early life may increase a child's risk of developing an allergy. For example breast feeding for six months or more has been shown to decrease the risk of asthma and other allergies in babies. Premature babies are also more at risk of developing allergies than full-term babies.
The most common allergic diseases

Asthma is a disease of the lungs that causes airways to become blocked or narrowed making it difficult for you to breathe. It harder to breathe in than breathe out. Asthma attacks are caused by triggers which are either allergens (like house dust mite, mould, pet dander) or irritants like cigarette smoke, traffic pollution or cold air.
​Asthma attacks are usually temporary, but if an asthma episode is severe, a person may need emergency treatment to restore normal breathing. Despite the far reaching effects of asthma, much remains to be understood as to what causes it and how to prevent it.
Asthma is potentially the most serious of the allergic diseases. In the UK, for example, during 2008-9, there were nearly 80,000 hospital admissions for asthma of which nearly half were of children aged 14 and under.
Although asthma can cause severe health problems, in most cases prevention and treatment can control it and allow a person to live a normal and active life.
Hay fever (seasonal rhinitis) is characterised by itchy nose and eyes, sneezing and runny nose. In the UK it is mainly caused by exposure to grass pollen (perennial rye and timothy grass).
Perennial rhinitis persists all year round. Sometimes people with perennial rhinitis do experience worse symptoms in the pollen season. Around 50% of those with perennial rhinitis have an allergy while the rest have some other problem with their nose or sinuses. 
The most common airborne allergens

​The most common airborne allergens vary from location to location. In the UK for example, the most common inhaled allergens are, in the following order:
  1. ​House dust mite
  2. Grass pollen
  3. Cat dander
  4. Tree pollen
​Asthma triggers also include:
  • Traffic pollution
  • Certain chemicals and gases such as VOCs
  • Cigarette smoke
Airora and common airbourn allergens
The ‘Allergy Season’

If you are allergic to pollen, you will need to be aware of seasonal variations. Other allergens like house dust mite, traffic and other indoor pollution, tend to be present year-round.
The pollen season varies for different plants and, in the UK, it lasts from early Spring to late Autumn. 
​​Then along came Airora 4-in-1 ...

The levels of allergens and lung irritants are much higher in your home than outside. Traditional air purifiers can do little to help because of their limited ability to clear the air, and keep the air clear, of all of the types of allergen and pollution which might cause you problems. Only Airora 4-in-1 treats ALL types of pollution, in a WHOLE ROOM, in seconds ​(no filter required!).

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Understanding Indoor Air Quality

10/7/2018

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​In the open air, 'Hydroxyl Radical Cascades' are continuously created by the complex chemical interactions that occur naturally in the atmosphere. Hydroxyls are the powerful but entirely safe and natural air cleaning agent, often referred to by scientists as 'Natures Detergent', which continuously decontaminate the air and gives 'fresh air' that clean and refreshing feel that we all love.
Children at risk from poor indoor air quality
​Indoors, the natural atmospheric ingredients that continuously create hydroxyl radicals don't exist and allergens remaining active, smells remain smelly and bacteria and viruses constantly build up in the air and on surfaces. Consequently, indoor air is generally much more polluted than outdoor air, yet until recently it has received far less public attention. 
We often spend up to 90% of our time indoors (at home, work or at school), so exposure to indoor air pollution is potentially much more damaging to our health. That is why the World Health Organisation considers indoor air pollution as one of the main health threats today, and states that around 3% of the global burden of disease is directly attributable to it.
Indoor air pollution

​Indoor air pollution is a complex mixture of microbes and substances in the air that are potentially harmful to health. The composition of this indoor air pollution can vary greatly depending, for example, where you live and on the contents of your home.
​In a home in a non-urban setting for example, house dust mite, pollen and mould spores can be a major cause of indoor air pollution and related health problems. In a new-build home or office, fumes from paints and insulation, new carpet and furniture can significantly contribute to the pollution. Especially in industrial or built up areas, traffic and industry pollution also play an increasing part in indoor air pollution.
In our homes the build up of both bacteria and viruses in the air is much greater than outside.
Sources of pollution

Damp dusting, not just dry dusting, is needed to reliably remove dust rather than just spreading it around. Most carpets are a major reservoir for dust and for every six rooms in a house around 40 pounds of dust is generated in a single year, much of which is human skin as we regularly shed our outer layer of skin as part of a continuous renewal process.
Internal air changes by the hour
The main components of dust which can affect your health indoors are:
  • house dust mite
  • mould spores
  • pollen
  • soot
  • pet dander (including cat saliva)
  • particulate cigarette smoke
  • bacteria and viruses
From 0.1 microns and smaller, pollution falls into the nanoparticle and molecular size range and includes:
  • the gaseous, that is non-particulate, components of cigarette smoke
  • combustion products such as carbon monoxide and nitrogen oxides from boilers and cookers
  • volatile organic compounds (VOCs) such as formaldehyde, which slowly seeps out from carpet or medium-density fibreboard often used in DIY or flat pack furniture and ​as found in a wide range of household products including cleaning solutions, air fresheners, aerosol toiletries and paint​
  • ozone, which at too high a level is a known lung irritant
  • radon is a radioactive gas that can be found in homes in certain areas if they are built on rocks containing uranium which naturally decays to radon
Health effects

Health effects of poor internal air quality
  • exposure to indoor air pollution can trigger attacks of asthma, hay fever, rhinitis and other allergic conditions
  • airborne human pathogens (bacteria and viruses) can cause colds, flu and much worse - ​Asthmatics and others with breathing problems will be well aware of the complications and difficulties that lung and throat infections cause. 
  • the adverse health effects of second hand tobacco smoke, including triggering asthma and increasing the risk of lung cancer, are well known.
  • ​long-term exposure to significant concentrations of VOCs can cause damage to the liver, kidneys, and central nervous system
  • ​​short-term exposure to VOCs can cause eye, nose and throat irritation, headaches, nausea, dizziness, fatigue and allergic skin reactions
  • exposure to VOCs is thought to contribute to 'Sick Building Syndrome' and ‘Multiple Chemical Sensitivity’ which are poorly understood chronic conditions marked by a wide range of symptoms including headaches, lack of concentration and fatigue
  • research has also shown that exposure to combustion products from wood burning stoves and gas cookers can have a number of adverse effects on heart and lung health
Prevention of indoor air pollution

It is always better to try to prevent indoor air pollution occurring before attempting to reduce or remove it:
  • if you smoke, it is best to do so outside and to ask smoking visitors to do likewise
  • If you suspect you live in a radon-affected area, get the radon level in your home tested and take appropriate corrective advice and action
  • check any DIY products or household aerosols or air fresheners for VOC content
Read the label and note whether the product should not be used in an enclosed space and remember that there are often more 'environmentally-friendly' alternatives to conventional paints, glues and similar products, so choose wisely:
  • avoid MDF and other products which release formaldehyde into an enclosed environment
  • getting rid of clutter, which attracts dust, will help reduce mould spores, bacteria and house dust mite
  • carpet is a prime reservoir for house dust mite - consider replacing your carpets with hard flooring
  • invest in a leakage free HEPA vacuum cleaner
  • keep humidity low to discourage mould and house dust mite
Where the main source of pollution is internal rather than external then letting fresh air into your home to displace internally polluted air is a good way of improving indoor air quality.
​Where the main source of pollution is internal rather than external, it is helpful to open windows after bathing, showering or cooking so that damp and mould don't build up.
Air Purifiers

An effective air purifier can play an essential part in reducing indoor air pollution in your home or place of work. But the key word here is ‘effective’ and the unfortunate truth is that most traditional air purifiers are not very effective!
​Various types of traditional air purifier focus on different pollutants, typically pollens, spores and other particles or on gaseous pollutants. Some combine technologies to address more than one type of pollutant.
​But all have the same drawback, they only clean the air passing through the device and rely, to only limited effect, on a high throughput of air to draw in pollution from the ever changing air in the room. However good the filter mechanism, they will only ever clean a modest proportion of pollutants from the air in a room because constant air changes, re-contamination, re-circulation and eddy formation means that there are always significant airborne pollutants in a room which have not been drawn into the device.
Then along came Airora ...
There is now however a new generation of air purifiers of which the Airora 4-in-1 is the first (and currently only) one. These air purifiers use the naturally occurring ‘hydroxyl radical cascade’ process found in the outside atmosphere to clean internal air (and exposed surfaces) of the full range of pollutants; allergens and irritants, pollutant gasses, bacteria and viruses and smells. 

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House Dust Mites

9/7/2018

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​House dust mites are one of the most potent and common domestic and workplace triggers of allergic reactions. 
​​Dust mites are microscopic eight-legged creatures called arachnids and they are closely related to the spider and the tick. They are found in every home and their presence is not an indication of poor cleaning!
​It is not the dust mite itself which is the allergen but enzymes (proteins) found in its droppings and decaying body. The whole droppings themselves are particles between 4 and 20 microns in size but may crumble into particles as small as 0.5 microns across.
​House dust mites feed upon the skin scales naturally shed by humans and other animals which are found in house dust. Although their presence is harmful to people who become allergic to them, dust mites do not bite or spread diseases.
While usual household insecticides have no effect on dust mites, fortunately there are multiple ways to reduce exposure to dust mite allergens in your home.

Dust mite allergy


​As with other allergens, dust mite allergens cause an ‘over-reaction’ of the immune system in an allergic person. In allergy sufferers Immunoglobulin E (IgE) antibodies present on the surface of mast cells trigger the release of histamine when allergens stick to these IgE antibodies. It is histamine that produces the characteristic symptoms of an allergic reaction. 

Dust mites love homes


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Dust mites are commonly found in bedding, mattresses, soft furnishings, soft toys and carpets. The moisture and warmth produced by your body during sleep add to the problem, making the bed an ideal environment for both creating and encountering dust mite allergen.
It is also easy to stir up dust mite allergens and make them airborne, for example walking across a carpet, getting in and out of bed or making a bed.

Dust mites love humidity


​​To survive, house dust mites absorb water from the air. When humidity is less than 50% they tend to dry out and die. They also prefer temperatures around 21°C (70°F).
It is thus crucial to get rid of damp in your home. Ventilate by opening windows, and check for condensation in the kitchen and bathrooms. If you live in a humid area, consider buying a dehumidifier but remember that very dry air can be uncomfortable especially if you suffer with sinus or respiratory conditions. 

Getting rid of dust mites in your home


​The fight is never ending - dust mites are everywhere and even if you can get rid of all of them in your home, new ones would still appear (they are carried into your home on people’s clothing, for instance). So, look for long-term solutions which will reduce your house dust mite burden.
Cleaning Routine:
  • wash your clothes, soft toys and bed linen weekly in hot water (55°C or 130°F). 
  • always make sure your bedding is completely dry before putting it back -dust mites will flourish in the presence of any trace of dampness
  • curtains, pillows, and duvets will need a good wash every few months as well
  • vacuum floors, rugs or carpet with a vacuum that is fitted with a HEPA filter and that is leakage free
  • use a good allergy air purifier (see below) to clean the air of dust mite allergens
  • wipe down all furniture surfaces with a damp (but not wet) cloth on a regular basis
  • make your dusting routine as thorough as you can – don’t forget to go behind or under furniture, along skirting boards and picture rails, and anywhere else that dust might collect
  • try adding a bit of eucalyptus oil to your duster, as this deters mites. There are also ‘anti-mite’ electrostatic dusters which hold onto the dust rather than spreading it around
Home improvements:
​These measures will create an environment that could seriously reduce the house dust mite burden in your home.
  • get rid of any clutter, like piles of newspapers and books, where more dust can build up
  • put ornaments into glass cabinets rather than on open shelves
  • in bedrooms start afresh with a new mattress, duvet, and pillows and cover with mite allergen proof covers - research has shown this really can improve asthma in children allergic to house dust mite​ - however, a potential problem with allergen proof bedding is that it is often so tightly woven that it is not breathable, leading to excessive sweating and complications with eczema
  • when choosing a new bed, remember that a raised bed makes cleaning underneath, where dust collects, so much easier
  • padded headboards are dust traps, and a slatted base is good because it will encourage circulation of air around the bed
  • consider replacing:
    • upholstered furniture with leather or vinyl covered alternatives
    • carpets with wooden or vinyl flooring
    • curtains, which gather dust, with blinds or shutters
  • seal up any cracks between boards on the floor so that dust does not come up from below
  • keep walls as simple as possible to avoid ledges where dust can gather

Anti-mite spray and powder


​Regular use of an anti-mite dust spray or powder can be of help. An anti-mite spray can penetrate mite reservoirs in carpets, soft furnishings and mattresses and anti-mite dry powder carpet cleaner can help get rid of mites where they nest.
When choosing allergy cleaning products, be careful to use cleaning products with natural ingredients. Spraying a chemical, especially on a regular basis, can be a severe trigger for people suffering with allergies.

Dust mites are not the only allergen in house dust


​Rather than a single substance, so-called house dust is a varied mixture of potentially allergenic materials. It may contain fibers from different types of fabrics and materials such as:
  • cotton lint, feathers, and other stuffing materials
  • dander from cats, dogs, and other animals
  • bacteria
  • mould and fungus spores (especially in damp areas)
  • food particles
  • bits of plants and insects
  • other allergens peculiar to an individual house or building
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​Cockroaches are commonly found in crowded cities and in, for example, the southern United States. Certain proteins in cockroach feces and saliva also can be found in house dust. These proteins can cause allergic reactions or trigger asthma symptoms in some people, especially children. Cockroach allergens likely play a significant role in causing asthma in many inner-city populations.

Can an air cleaner help?


​While numerous manufacturers of ‘air cleaners’ / ‘air filters’ claim to be able to clear dust mite allergens from the air, they can only reduce, not eliminate, the problem, because:
  • they can only clean the air that passes through them, and stratification, eddies and more means that some air in the room never passes through the filter
  • they don’t clean surfaces at all and it only takes a small disturbance to put settled dust mite allergens back into the air
​The only technology we know of that can neutralise dust mite allergens throughout the air in the room and on surfaces is Airora’s ‘Hydroxyl Cascade’ technology.
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​You can learn more about why traditional air cleaners don’t work well here and why Airora’s unique technology does work here.
Download this blog as a PDF>
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Rhinitis Basics

2/7/2018

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Rhinitis can be miserable
​Rhinitis, including hay fever, is the most common of all the allergic diseases. The typical symptoms such as blocked nose, watery eyes, & running nose may persist all year round (perennial rhinitis) or may be seasonal.  Even though it’s often undiagnosed and its symptoms often thought of as harmless, the impact perennial rhinitis can have on a person’s overall quality of life can be significant.

What is rhinitis?


​Rhinitis is inflammation of the nose. It may, or may not, be caused by an allergy.
​Allergic rhinitis:
Allergic rhinitis is common, for example affecting around 20% of the UK population.
Seasonal allergic rhinitis (hay fever)
Hay fever, the most common of the allergic diseases, is also known as ‘seasonal allergic rhinitis’. People with hay fever generally have symptoms throughout the pollen season (spring, summer, autumn). The exact period will depend on the type of pollen (tree, grass or weed) that triggers their symptoms.
​Perennial allergic rhinitis​
Where symptoms are present all year-round rhinitis is known as ‘perennial allergic rhinitis’. In this case the allergen is often something other than pollen, like house dust mite, pet dander or traffic pollution. However, some people have rhinitis all year round, but find their symptoms are worse during the pollen season.
In some countries the pollen season is very long, so you may hear the term persistent rhinitis used to describe hay fever in such cases.
Non-allergic rhinitis:
Triad​
The name triad comes from the presence of three distinct symptoms: asthma, nasal polyps, and perennial rhinitis. Triad is strongly associated with a sensitivity to aspirin and related drugs.
NARES
​NARES is an acronym for Non-Allergic Rhinitis with Eosinophilia and is marked by the presence of immune cells called eosinophils in the nose, where they cause severe inflammation.
Vasomotor rhinitis
Vasomotor rhinitis is a condition that causes chronic sneezing, congestion, or runny nose. While these symptoms are like those of allergic rhinitis (hay fever), nonallergic rhinitis is different because, unlike an allergy, it doesn't involve the immune system.

Rhinitis symptoms


​Common symptoms:
  • frequent sneezing
  • runny or blocked nose
  • itchy, red or watery eyes (also known as allergic conjunctivitis)
  • an itchy throat, mouth, nose and ears
Less commonly, you may experience:
  • the loss of your sense of smell
  • facial pain (caused by blocked sinuses)
  • sweats
Another symptom of perennial allergic rhinitis is post-nasal drip, where mucous runs down the back of the nose and then into the throat and the airways, producing a persistent phlegm cough.

Causes of allergic rhinitis


​Allergic rhinitis is caused by exposure to an airborne allergen. Common allergens include:
  • house dust mite excretions
  • particles from insects such as midges, mosquitoes, cockroaches, carpet beetles, house flies
  • mould spores, indoors and outdoors
  • pet dander, especially from dogs, cats and horses
  • workplace allergens, such as flour, wood dust and chemicals
  • sometimes a food allergen can cause rhinitis -yeast is probably the most common food allergen to produce nasal symptoms

What happens when the allergen is breathed in


​​The nose is a remarkable organ acting as both heat exchanger and filter.
Cold air entering the nose flows past the turbinates, which are small bony projections on the breathing passages covered by mucous membrane. Particles and bacteria are trapped by the membranes, while the air is warmed by being drawn across the network of blood vessels that lie beneath the membranes.
Allergic Rhinitis is caused indoors by household allergens
​In allergic rhinitis, blood flow is increased, the mucous membranes swell and there is increased mucous production, all occurring in response to histamine production on exposure to the allergen. The result is nasal congestion, nasal blockage, and/or a runny nose.

Allergic rhinitis diagnosis


​A simple description of your symptoms and their seasonality may be all that is required to diagnose rhinitis.
If confirmation and/or identification of an allergic cause is needed, then a skin prick test can be used. A tiny drop of allergen extract is placed on the skin at either the arm or the back. If you are allergic to the substance, a small red weal will appear within a short period.

Prevention


​Allergic rhinitis can be reduced by avoiding exposure to allergic triggers, for example:
House dust mite
  • minimise allergen ‘reservoirs’ like carpets, sofas and curtains by using different materials and changing to hard flooring where possible
  • de-clutter your home and damp dust regularly
  • keep your home dry, reducing mould as well as house dust mites
Pet dander
  • confine your pet to one room in the house or keep it outside
  • wash your pet regularly with special allergy shampoo and always wash your own hands after touching it
  • pet dander gets airborne but also settles on carpets and soft furnishings so keep the house ventilated and vacuum regularly to suck up the allergen, using a vacuum with a HEPA filter to trap the particles
Mould spores
  • keep your home dry by dealing with any cracks, leaks, or rising damp, and remove any visible patches of mould.
  • when you are cooking or bathing close the door and where possible open a window afterwards to allow steam to escape, preventing a build-up of mould spores
  • avoid having carpet in the bathroom
  • dry all clothes outside whenever possible

Medical treatments for allergic rhinitis


​If your symptoms are mild, you can use a long-acting non-sedating antihistamine such as Claritin (loratadine), NeoClaritin (desloratadine), Zyrtec (cetirizine), Xyzal (levocetirizine) or Allegra (fexofenadine). These are available without a prescription, but you should always consult your pharmacist before use.
The older antihistamines like chlorpheniramine (Piriton) and hydroxyzine (Atarax) have a significant sedating effect and should not be used if you are driving, operating machinery, or studying. These older drugs also interact with alcohol so having even a small amount to drink may significantly affect performance.
If rhinitis mainly affects your eyes, antihistamine eye drops, such as Otrivine (antazoline) may help.
In addition to an antihistamine, a nasal decongestant (drops or a spray) may also be helpful in clearing a blocked nose. Some of these decongestants are corticosteroids, which act by reducing inflammation including Beconase (beclomethasone) and Flixonase (fluticasone). Non-corticosteroid nasal decongestants include Otrivine/Sudafed (xylometazoline). All of these can be bought without a prescription. However, only use a decongestant for as short a time as possible, as the nose tends to stop responding to these medications over time.
In general, antihistamines and topical nasal steroids are most effective against seasonal allergic rhinitis/hay fever but may still help with perennial allergic rhinitis. 

Can an air cleaner help?


While numerous manufacturers of ‘air cleaners’ / ‘air filters’ claim to be able to clear those allergens leading to rhinitis from the air, they can only reduce, not eliminate, the problem, because:
  • they can only clean the air that passes through them, and stratification, eddies and more means that some air in the room never passes through the filter
  • they don’t clean surfaces at all and it only takes a small disturbance to put settled allergens back into the air
The only technology we know of that can neutralise allergens throughout the air in the room and on surfaces is Airora’s ‘Hydroxyl Cascade’ technology.
You can learn more about why traditional air cleaners don’t work well here and why Airora’s unique technology does work here.
Airora 4-in-1
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    Author

    Dr Wyatt blogs on his lifetime's experience of Indoor Air Quality Issues.

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