Note First: Please open the front cover and remove the package from HEPA high-efficiency filter before use. Upgraded Filtration System Adopts upgraded 3 stages filtration system which includes Ultra-fine Pre-Filter, True HEPA Filter and High-grade Granular Activated Carbon Filter. The pre-filter can be cleaned by every 2-4 weeks to maintain its effect and other 2 filters cannot be cleaned. It is recommended to replace the filters by every 6-8 months to breathe easier all the time. The cost-effective replacement filter can be purchased by searching YF-A3C-HEPA on yaufey website. Any problem can contact yaufey support. Enjoy Fresh Air with Assurance and Ease Air Purifier is tested for its ability to filter tobacco smoke, dust, and pollen with the CADR (Clean Air Delivery Rate) of 105.9+ CFM, the higher the CADR the faster the unit filters the air pollutants. Specifications: Effective Range: ≤ 258 ft² Noise Level 30–57 dB CADR: 105.9CFM (cubic feet per minute) Dimensions: 12.7”x6.77”x 20.07” What's in the Box? 1 x Air Purifier 1 x True HEPA 3-Stage Original Filter (Pre-Installed) 1 x User Manual
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