what is an air purifier? ?

Question

Can I use an air purifier? for stay good health, how much helpful covide 19 it is or safe. 

Answer 1

An air cleaner doesn’t kill viruses. It is good for smoke and pollutants. People with allergies or asthma can benefit from an air purifier. 

Answer 2

air purifier cleans, filters, and purify the air.