All air conditioners include some form of air filtration to prevent larger airborne particles from entering the indoor fan unit that could potentially clog the coil and affect the mechanical components.

Additionally, most air conditioners will include a further level of filtration using cold catalyst, carbon and HEPA fliters for removing odours, smoke and smaller airborne particles and allergens such as pollen, house dust, mold and bacteria.

Some of the more advance systems will use a combination of filters, which may include ion generators or the use of hydroxyl radicals for removing or neutralising the most harmful of contiminants including pathogens like Coronavirus

Airborne allergens such as pollens and house dust can significantly impact our health, particularly for individuals who suffer from allergies or respiratory conditions. Pollens, which are tiny grains released by plants for reproduction, can trigger allergic reactions when inhaled, leading to symptoms such as sneezing, runny nose, itchy eyes and asthma attacks.

House dust, on the other hand, often contains a mixture of dead skin cells, pet dander, dust mites and other microscopic particles, which can also induce allergic reactions and a variety of respiratory issues.

Prolonged exposure to airborne allergens can exacerbate chronic conditions like asthma and bronchitis that can seriously impact on our overall quality of life.

Particulate matter (PM) refers to a mixture of tiny solid particles and liquid droplets that are suspended in the air. These airborne particles can include dust, dirt, soot, smoke and aerosols that can vary in size, composition and origin.

PM is typically categorized by the physical size of the particles, where PM10 will relate to particles with a diameter of 10 microns or less. PM2.5 particles with a diameter of 2.5 microns or less can potentially enter the bloodstream and lead to respiratory and cardiovascular diseases.