Ensure your home is rid of allergens, fine dust, odors, tobacco smoke, and more by using the BONECO A681 Hybrid HEPA and Active Carbon Filter with your BONECO H680 Humidifier and Purifier. This innovative, 2-in-1 hybrid filter is a combination of a HEPA (high-efficiency particulate air) filter and an active carbon filter that work together to filter the surrounding air. The HEPA filter works to decrease susceptibility to allergies and removes over 99% of PM2.5 and fine dust while the active carbon filter reduces tobacco smoke, harmful VOCs, formaldehyde, odors, exhaust gases. Filter functions are combined into 1 hybrid filter for beneficial, convenient, and efficient air filtering. This filter is ideal for family homes, classrooms, offices, workspaces, and any room you need healthier and purified air. Use the BONECO A681 Hybrid HEPA and Active Carbon Filter in conjunction with your BONECO H680 Humidifier and Purifier for ideal air filtration and purification, and keep your home, classroom, or office maintained with healthy air.