The HEPA Filter Premium Tower Air Purifier from Lasko provides "TotalProtect Filtration™ to protect your home from The Invisible 8 -- the top airborne irritants common in most home environments. True HEPA filtration captures 99.97% of airborne irritants, including allergens, smoke, virus-sized particles, bacteria, VOCs, pet dander, pollen, dust, and mold spores*. This air purifier works with your Amazon Alexa device, so you can control it with the app on your smartphone or with your own voice -- the ultimate convenience! You can even set up routines that Alexa will perform automatically. This premium air cleaner features 4 speeds, an 8-hour timer, and DreamMode™, which uses the ultra-low setting and dimmed display lights to clean the air while you sleep peacefully. Its 150 CADR rating means that this purifier is capable of cleaning dirty indoor air quickly and efficiently. Plus, the auto check filter reminder helps you know the best time to change your filters. Comes with a filter pack that lasts up to 1 year and trusted safety fuse technology. Ideal for rooms up to 232 square feet. * Tested with Staph Epidermidisa, Escherichia Coli, Aspergillus Niger, and MS-2