The best air purifiers in 2021

Can work with rooms up to 465 square feet and captures 99.97% of airborne viruses, bacteria, and mold spores. You can choose between three air cleaning levels and a Turbo Clean function. Includes a control panel with adjustable lighting.

Includes the unique HEPASilent filtration system that works similar to true HEPA but uses less energy and makes less noise. Filters the air at an industry-recommended rate and removes 99.97% of particles. Includes an activated carbon filter to remove odor and gas. Has six pre-filter color options.

Includes a three-stage filtration system that uses a pre-filter, a HEPA filter, and an activated carbon filter. Can work with essential oils for a fragrant air. Even has a special way to lock the touch controls so they aren't accidentally activated by a pet or child. Can cover 107 square feet.

Includes six high-speed micro-fans that evenly distribute airflow across the filter. Since you're working with a bunch of smaller fans instead of one big one, the Shark purifier can operate much quieter. It can also track air quality and automatically adjust its power.

Uses a True HEPA 3-stage filtration system that can clean 99.97% of air particles. With two fan speeds you can accomodate different needs, making it quieter when you're sleeping or with a stronger setting for better purification. Can cover an area up to 112 square feet and is powered by either a USB port or the included AC adapter.

Has a 360-degree design so it can cover a wide area all around. Has a 4-in-1 HEPA air filter, four fan speeds to choose from, a timer and sleep mode, and more. There's even a warm night light and child locks. The special pet mode runs the purifier at Turbo for 15 minutes and level 3 for 5 minutes to get rid of unwanted odor, pet allergies like dander, and more.