Nispira High Efficiency HEPA filter for Honeywell air purifier 10500 (EV-10), 17000, 17000-S, 17005. High quality HEPA filter captures 99.97% of airborne particles size down to 0.3 microns. Activated charcoal pre filter helps deodorize any unfavorable household smell and removes chemical VOCs. 1 Set included. Dimensions: 11 in x 11 in x 6 in. Suggested to replace every 6 months for best performance. 100% customer satisfaction guaranteed. Quality meets or exceeds leading national brand