This Purivortex PX500 black air purifier is optimized for home use, especially suited for bedroom placement. It adopts an ozone-free safe design, runs at a low noise level that will not disrupt your sleep or daily rest, and supports coverage for rooms as large as 880 square feet. Its high efficiency HEPA filter captures pollen, smoke, dust, pet dander, stray hair and unwanted odors to deliver consistently fresher indoor air.