Levoit Sprout Air Purifier $200, Was $280

Originally $279.99, this Levoit Sprout Air Purifier is down to $199.99 at Levoit. Others charge $280. It tracks humidity, CO₂, and TVOCs on your phone, and its 3-stage HEPA filtration system catches 99.97% of airborne particles. It can be used quietly if you prefer, otherwise, it makes a great white noise machine at night. It's also HSA/FSA eligible, which is useful if you've got FSA dollars you need to use before they expire, or if you'd rather pay for it with pre-tax HSA funds. Backed by a 2-year warranty and 30-day money-back guarantee, so testing it out isn't much of a gamble.