What's the meaning of air cleaner?

Also known as the air cleaner, air purification machine, fresh air, refers to adsorption,
break down, or convert all kinds of air pollutants (including dust, pollen, peculiar smell,
formaldehyde, decoration pollution, such as bacteria, allergens, etc.),
effectively increase the air cleanliness of the product,

at present to remove indoor air pollution in the residential and commercial air purifier.

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