DUAL SIDE AIR INTAKE & LARGER COVERAGE: DBFIT AP300 air purifiers for home feature a double-sided air intake design that cleans air on both sides simultaneously, purifying twice as fast as traditional single-intake models. This large room air purifier covers an area up to 3000 ft²and refreshs a room of 533 ft² rapidly in just 10 minutes. The high-efficiency HEPA air purifier captures 99.97% of airborne particles, ensuring a smoke-free, dust-free, allergen-free, and odor-free environment for you and your family! WASHABLE FILTER FOR PET LOVERS: The air purifiers for home large room have 2x H13 HEPA filters that can effectively filter airborne particles as small as 0.3 microns, such as pollen, dust, and pet dander. The pre-filter of this pet air purifier can be cleaned by vacuuming or washing to extend its service life. Upgraded dual-layer activated carbon filter with 112.5% more activated carbon particles to help absorb odors such as pet odors, smoke, and VOCs. A great choice for pet