Score a deal on this 2-pack of air purifiers on Amazon.
This pack is normally $119.99, but it's on sale for $79.99. On top of that 33% discount, clip the coupon for an extra 30% off. Pay just $54.99, which breaks down to $28 per humidifier.
Amazon coupons don't last very long, so get the best home deals before they're gone.