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Filtrete Premium Allergen and Ultrafine Particles Size A2 True HEPA Air Purifier Filter in the Air Purifier Filters department at Lowes.com
Douglas Hannah on Twitter: "New miniature dorm-room #corsirosenthalbox air filter. Total cost ~$55, high output, easy build, super clean look. Build notes: https://t.co/rLvpsdivmb" / Twitter
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