Air purifiers with True HEPA filters aren’t cheap, but this AeraMax 200 is one of the best deals you’ll see. Amazon’s selling the freestanding purifier for $120 today, an all-time low, and well below its usual $200 price tag.

The AeraMax 200 automatically detects particles in the air, and cycles itself on and off accordingly. It’s also certified by the Asthma and Allergy Foundation of America, so if fall is a particularly awful allergy season for you, this could certainly help. [AeraMax 200 Air Purifier for Allergies and Odors with True HEPA Filter and 4-Stage Purification, $120]

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