Air Purifier buying guide: 10 things to keep in mind


India celebrated Diwali on October 24 with lights and firecrackers. The air quality level of the whole nation generally takes a hit as firecrackers tend to increase the number of pollutants and allergens present in the air (both indoor and outdoor). The outdoor air pollution levels are impossible to control but you can keep the air in your room clean with the help of air purifiers. Here is a list of things that you should consider before buying a new air purifier for your home.

Air Purifier buying guide: 10 things to keep in mind

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​Importance of air purifiers

Air purifiers prevent users from breathing in toxic air and are important for families with kids and members affected by respiratory problems. Not only the outdoor air quality but several household products also cause indoor air pollution. Air purifiers can control indoor air quality by getting rid of dust, pollen, allergens, pet dander, odour and other pollutants that are invisible to the naked eye.

Air Purifier buying guide: 10 things to keep in mind

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​How do air purifiers work

To improve indoor air quality, air purifiers use different types of filtration technologies. Each type of filtration offers specific benefits and some air purifiers offer multiple layers of filtration in a single product. Air purifiers absorb the polluted indoor air and circulate it back into the room after removing the pollutants.

Air Purifier buying guide: 10 things to keep in mind

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​Different filters for different purposes

When buying a new air purifier users should be aware of the different filters and how they help in cleaning the air. It is advisable to buy an air purifier with multiple levels of filtration but these products can be way more expensive than the ones that come with a single layer of filtration.

Air Purifier buying guide: 10 things to keep in mind

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​Pre-filters

Pre-filters usually tag along with other layers of filtration and are good for eliminating larger particles of dust and pet dander. If you reside in industrial areas or near a construction site or if you have pets in your home, pre-filters can be an important addition.

Air Purifier buying guide: 10 things to keep in mind

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​HEPA filters

High-efficiency particulate air filters or HEPA filters can eliminate smaller particles like dust, mould spores and pollens. HEPA filters claim to remove particles as small as 0.3 microns and are important for families with kids and members with low immunity or respiratory diseases.

Air Purifier buying guide: 10 things to keep in mind

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​Activated carbon/charcoal filters

Activated carbon or charcoal filters remove smoke, odours, fumes and chemicals from the air by absorbing harmful gases. These filters usually come combined with other filters and can prevent users from inhaling toxic fumes and gases.

Air Purifier buying guide: 10 things to keep in mind

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​Anti-bacterial and UV filters

The anti-bacterial filters help air purifiers to get rid of harmful germs and bacteria. Similarly, UV filters sterilise the air and prevent various airborne infections from spreading.

Air Purifier buying guide: 10 things to keep in mind

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​Area or room size

Another important thing that users should keep in mind before buying a new air purifier is the size of the room or area that suits the product. Air purifiers that can filter the area of a small room will not work properly in bigger spaces. Moreover, users should also decide the type of air purifier depending on the room they are planning to place. For example, in bedrooms, users should install an air purifier that operates silently to sleep peacefully.

Air Purifier buying guide: 10 things to keep in mind

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​Air change rate

The hourly air change rate indicates the number of times an air purifier filters the air of a given room or area in an hour. Users should opt for air purifiers that offer the maximum air change rate.

Air Purifier buying guide: 10 things to keep in mind

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​CADR rating

This rating defines the efficiency of the air purifier by measuring the amount of purified air delivered by the product at its maximum speed setting. The higher the CADR rating, the higher will be the efficiency of the air purifier for a given space.

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