How We Tested
We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.Click here for testing insights >
Finding an air purifier can be difficult if you don’t know how to evaluate them. Here we’ve listed and explained the most important features to consider when shopping around for an air purifier.
Area Coverage (Size)
If the device has a square footage rating that’s equal to (=) or greater than (>) the intended room size, then it’s a good choice. If not, you’ll waste your money buying it. For best practice, you want an air purifier that has a 20% higher area coverage than the room you’re going to use it in.
For a single room, measure the width and length of the space in feet and multiply these numbers together to get the total square footage. For example, a 10′ x 20′ room = 200 sq. ft.
For multiple connected rooms, like a living room, dining room, and kitchen, the only additional step you have to do is combine the total square footage numbers from each space. For example, a 10′ x 20′ living room = 200 sq. ft., a 10′ x 10′ dining room = 100 sq. ft., and a 15′ x 20′ kitchen = 300 sq. ft. Combining these totals together (200 + 100 + 300) equals 600 sq. ft.
This filter captures the largest particles (such as hair and dirt) and helps extend the life of the other internal filters. A pre-filter air filter is usually washable and reusable for the life of the product. The Veva 9000 model above has the best affordable filter system we found in our testing.
Air purifiers can have anywhere between 2-5 fan speed settings, ranging from low to high and anywhere in between. Some even include a turbo speed to speed up the air cleaning process on demand.
Before purchasing an air purifier, it’s recommended that you look at the manufacturer’s warranty. This can help avoid potential problems in the long run. Find out what parts are covered and for what length of time, just in case they do become defective.
An air purifier is a long-term investment and is not something you want to keep replacing. You don’t want to buy a product that becomes faulty and then find out that the warranty didn’t cover the important mechanisms of the product or that it didn’t last for a reasonable period of time.
Other Products We Considered
The Fat Kid Deals editorial team researches hundreds of products based on consumer reviews, brand quality, and value. We then choose a shorter list for in-depth research and testing before finalizing our top picks. These are the products we considered that ultimately didn't make our top 5.