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Is an $800 purifier best to clean your home's air? Marketplace tested 5 top brands and their claims | CBC News
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Shark 3-in-1 Max Air Purifier, Heater & Fan with NanoSeal HEPA, Cleansense IQ, Odor Lock, for 1000 Sq. Ft Charcoal Grey HC501 - Best Buy
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Amazon.com: LEVOIT Air Purifiers for Home Large Room, Covers Up to 3175 Sq. Ft, Smart WiFi and PM2.5 Monitor, Hepa Filter Captures Particles, Smoke, Pet Allergies, Dust, Pollen, Alexa Control, Core 600S,
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