Jese Air Purifier for Bedroom,Desk Air Purifier with 3-in-1 True HEPA Filter, Air Purifiers for Allergies and Pets,Eliminate Formaldehyde, Dust & Smoke,Small Air Purifier Quiet 3 Stage Filtration System: Jese Air Purifier works with Pre-filter,True-Hepa filter,Charcoal cloth filter.The 3 stage system clears out 99.7% 0.3-micron airborne contaminant: eliminates formaldehyde,dust and smoke,improves indoor air quality effectively so let the fresh air be filled with house. Powerful And Efficient Hepa Technology:Air cleaner works seamlessly to eliminate dust, formaldehyde, Pm2.5,allergies and pets, mold spores and smoke.covers up to a office of 110sq.ft(10m²);CADR Rated 37.1m3/h,Suitable for personal use and set up in bedroom,study room. Suitable For Bedroom Or Office:Runs at low noise level (<37dB）.Don't disturb sleep, read or work,Give you a comfortable and healthy environment. Easy Control & Compact