We all have dust in our homes, and this dust can be made up of particles of pet dander pollen, dust mites allergens and moulds. They are tiny – on the microscopic scale - which is why you can’t see them with the naked eye

Indoor Air Quality

Indoor air quality (IAQ) refers to the quality of air in a work or home environment, dealing specifically with factors (airborne pollutants, temperature and humidity) that have an effect on the health, comfort and general wellbeing of the occupants.

The cair system sensors have been handpicked to deliver specific analyses of these very factors, specifically;


Particulate matter (PM or particle pollution) monitoring is the most critical parameter of air quality for asthma and allergy sufferers. Airborne particles are one of the leading asthma triggers, and encompass a broad range of constituents such as mould, pet dander and dust mites allergens.

The World Health Organisation (WHO) categorise particulate matter into two distinct groups;

PM10 - Particles ranging from 10 – 3 microns in size (aka Coarse particles)

PM2.5 - Particles in the range of 2.5 microns and below (aka Fine particles)

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The cair VOC (Volatile Organic Compound) sensor is a high quality sensor designed to measure pollutants and chemical toxins as well as Carbon Dioxide CO2 in the air, and is another input to the smart alerts.

VOCs are chemicals which easily evaporate, quickly spreading and becoming suspended in the air, possibly for prolonged periods. Every cleaner, chemical or product that has a distinct smell is releasing these chemicals, and they are ever present in the modern home. But it is a known fact that an overabundance of these chemicals can lead to nausea, unease and discomfort.

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Temperature is the most personal of all of the features of IAQ. Each individual will prefer a specific temperature range they find comfortable to live in. Bouts of cold air can be a trigger for respiratory issues, especially in asthmatics, and elevated levels (alongside raised humidity levels) can create an increasingly attractive environment for mould to grow. Again, it is all about the perfect balance of comfort and care that will be most beneficial.

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Maintaining a low humidity level can be helpful to people who suffer from asthma and allergies, as both dust mites and moulds favour damper environments. Lower humidity has also been shown to lower indoor pollen counts. But the side effect of lowering humidity is that your general comfort may be impacted upon. Skin and lips may lose valuable moisture, and nasal passageways may become dry and irritated. Essentially what is needed is a healthy balance, keeping allergens down while maintaining the comfort in your home. This is even more important in countries that have typically low/high levels of humidity to begin with.

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