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a year ago
An air purifier is a portable device that pulls in polluted, impure air, filters it and throws clean, purified air back into the room. It consists of a fan which pulls in the air and one or more internal filters which remove the dust particles and pollution from the air. Purified air is then circulated back into the room. The air purifier repeats this process of filtering the air several times an hour, thus continuously improving the air quality in the room. They are essential where there is high pollution, that includes most big cities in India. They are a great relief for people suffering from allergic conditions like sinus, asthma, allergic colds and coughs, and bronchitis.While buying an air purifier, one should check for HEPA filters since they are especially useful for filtering finer particles such as fine dust, PM2.5 and PM10. They are also known to be very effective in filtering nanoparticles like bacteria, COVID-19, and other viruses.