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NOTE: Please Order Membrane Solutions Genuine MSA3 Air Filters, Non Official Brand Filters Can't Start The Purifier. Our Genuine officially designated filters keep your MSA3/MSA3S air purifier at its best working efficiency and extend the machine serving life. Powerful Performance: MSA3 air purifier for home large room remove 99.97% of pet dander, dust, pollen, smoke, odor, mold, etc. Effectively improving indoor air quality and relieving pet allergies, coughing, sneezing, chronic allergies, and seasonal allergies. Suitable for any room or enclosed spaces such as living rooms, kitchens, bedrooms, offices, restaurants, hotels, and labs. Upgraded 3-STAGE HEPA Filter: MSA3 Air Purifiers for large room features a 3-stage filtration design: Pre-Filter, H13 TRUE HEPA Filter, and Activated Carbon Filter. (The upgraded filter has added OdallerPure technology to optimize the structure and content of activated carbon, and the odor removal effect is greatly improved.) Efficiency Filtration: MSA3 Air Purifier uses an H13 True HEPA PP electrostatic electret melt-blown filter. Filters out 99.97% of particles as small as 0.01 microns and air pollution PM 2.5 (particulate matter). Helps to relieve common allergies like sneezing, coughing, and irritated eyes. Air Purifier for Large Room: MSA3 home air purifier is designed for large room. Max coverage is up to 1590ft², Customers will notice the difference within 10 minutes of using the MSA3 Air Filter. Low-Noise Operation： Air purifier whole house runs at a very low noise level (22dB) when in sleep mode, the quiet HEPA air purifier cleans the air without noise pollution. Enjoy a peaceful, sweet dream and clean air with low-noise air purifier. Safe and Reliable: 100% Ozone Free Air Cleaner. Certified to ETL, FCC, CE, and RoHS. Show More