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The Miko Smart Home Air Purifier is a black HEPA air purifier with app control, an oil diffuser and an ionizer. Miko rates it for rooms up to 1,500 square feet, a coverage claim that is generous for a unit in this price class. At $73.70 at Walmart as of November 6, 2026, it sits at the low end of its price range, so the price is not the main risk.
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Lowest price we've seen: $73.70 on Nov 6 at Walmart. Tracked across 4 stores since Nov 6.
Ratings average 3.9 out of 5 from 151 buyers, so most are satisfied but a notable share are not. Complaints center on the gap between the advertised coverage and real-world performance, and on app and ionizer behavior.