Clorox is a trusted brand for powerful cleaning and has helped families for over 100 years. The Clorox true high efficiency particulate air (Hepa) replacement filter builds on our trusted legacy by helping you protect your family from allergens, pet dander, dust, smoke, viruses, bacteria and more. It captures 99.97% of allergens and particulates and reduces viruses and bacteria so you can breathe easier. The 3 stage 360 degree filter delivers 360 degree air purification by capturing particulates in 3 filters- a pre-filter, true high efficiency particulate air (Hepa) filter and active carbon filter. Fits Clorox medium room air purifier model 11030 and Clorox medium room smart air purifier model 11031. Includes 1 Clorox filter that lasts 6-12 months.