Features1. Recommend 1 Pack Air Purifiers: One Air Purifier for bedroom or baby room to filter dust, pollen. Another Air Purifier for pets in living room, small&medium room to filter pet dander,odor,hair. HEPA Air Purifiers for home with 3 Layers Filter(Ultra fine pre-filter, H13 True HEPA Filter, Activated Carbon Filter) Filter 0.3 micron airborne contaminants, smoke &VOC, keep the air fresh around you. Our home air purifier refresh 5x per hour in 183 ft,up to 915 ft in one hour. 2. Quiet for Sleep & Child Lock: Set your air purifier to sleep mode, the room air purifier will run at a silently noise level of lower than 22dB, quiet enough to refresh your room air at night, brings you a better experience during your sleeping, especially for baby and kid. Besides, the child lock effectively prevents errors caused by pets or kids. 3. 2/4/8H Timer & 3 Wind Speed: The air purifiers for bedroom is easy to set up and pretty quiet when it's operating, even on the highest wind speed. The HEPA air purifier design 3 speed function (sleep, medium, high) and 2/4/8 hours time settings for energy saving. Gonrair desktop air purifier perfect for pet owners, babies, smokers, the elderly, fits in bedrooms, living rooms, offices, nurseries, kitchens and basements. 4. Portable Air Purifiers for Pets: The air purifiers with adapter packed inside the filter, enjoy fresh air everywhere as long as connect the power or power bank. The air cleaning design with handle, flexible adjustment as you need. Besides, the air purifier handle can be used as bracket, then the fresh air comes!air purifiers for home will protect you and your family forever! 5. Available for Germany: 100% Ozone Free,ETL,CE,ROHS,PSE,CARB certification to ensure your safe. (Note for Replacement Filters: Please remove the plastic wrap from the filter before use. For best performance, replace the HEPA filter about 3-6 MO)SpecificationVoltage: DC 5VPower: 3WOperating volume: 25-48dBTiming: 2/4/8 hoursMaterial: ABSColor: WhiteSize: 26 x 16 x 16 cmWeight: 1250 gPackage Include:1x Air Filter