The 11 best holiday tech gifts under $100

• Price: $79
• Features: Covers 1,095 square feet | 3-in-1 filter | Touch control

This Amazon best-seller is perfect for cold and flu season; with a HEPA-grade filter, it can purify a space about three times as big as the average New York City apartment. It even works well in Sleep Mode, as confirmed by a third-party lab, and helps filter away dust, allergens, pet hair, and more, including smog and wildfire smoke. This filter is also quiet while still being effective, making it a great choice for anyone who’s held off on getting an air filter due to the disruptive noisiness. 

Normally $100, this air filter is on sale for $79 on Amazon.