Air Purifiers on Sale

Groupon offers the Purafilter 2000 Gold Series Air Filter 4-Pack in several sizes (16" x 20" x 1" pictured), with prices starting at $22.99 plus $3.99 for shipping. That's up to $33 off and the lowest price we could find, although we saw prices starting from $3 less in June. Each filter features a MERV 11 rating and lasts up to 90 days.

Groupon offers the Therapure TPP320 Air Purifier in Black or White for $42.99 with free shipping. That's the lowest price we could find by $6. It's designed for small to medium rooms and features five layers of filtration (pre-filter, HEPA, UVC lamp, photocatalytic oxidation, and oxygenating catalyst).

Walmart offers the Black + Decker Table Top HEPA Fresh Air Cleaner for $14.88. Opt for in-store pickup to avoid the $5.99 shipping charge. That's $5 under our mention from three weeks ago, the best deal we've seen, and the lowest price we could find by $12. It's designed for medium to small rooms.

Nova Tech via Amazon offers Prime members the Tec.Bean USB Portable Ionic Air Purifier for $19.99. Coupon code "JBSN6FUT" cuts it to $11.99. With free shipping, that's the lowest price we could find by $4. It eliminates up to 99% of airborne bacteria in small areas.