what is filter in cigarette does the on a do? Talking About Cigarette Filters |

What our tester says: Our favorite thing about this Coways might be its smart Auto mode

Vapors from cleaning products or fertilizers can introduce ammonia to the system, and in addition to irritation, high concentrations of ammonia can cause many serious lung problems

For best results, use your kitchen range hood simultaneously to capture the bulk of grease and steam at the source before the purifier handles residual particles and odors

Persistent Stains: If, after all your cleaning efforts, you still see faint yellow or brown stains bleeding through, its a clear sign that the soot has penetrated too deeply for surface cleaning alone

Maintain freshness with air purifiers and strict no-smoking rules

But I dont think its working