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Strategic Air Purifier Placement Where you place your unit significantly impacts the ability of the air purifier to work effectively against smoke: Position in the center of the room when possible for optimal air circulation

What you need: Light/Occasional Smoke: 1-2 lbs (Alen Flex range) Moderate Daily Smoke: 2-4 lbs Heavy Smoking/MCS: 5+ lbs (IQAir, Austin Air) Red flag: If a manufacturer doesnt specify the carbon weight anywhere in their materials, its probably negligible

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If your teeth look yellow, one of these things might be the culprit