Best Portable HEPA Filter Air Cleaner for Allergy Smokers

Air purifiers mainly use various technical means such as physical filtration, electrostatic dust removal, chemical adsorption, negative ions, etc. to remove pollutants such as particles, bacteria, viruses, and harmful gases from indoor air, thereby improving indoor air quality. Its working principle can be summarized as inhaling indoor air, undergoing multi-layer filtration and purification treatment, and then releasing fresh and clean air back into the room.