The 4 Best Air Purifiers For Bedrooms - Summer 2024 Reviews

The best air purifier for bedrooms we've tested is the NuWave OxyPure. This premium air purifier operates remarkably quietly at lower fan speeds, making it an ideal fit for overnight use. It might be a little overkill for smaller bedrooms since it has a fairly bulky footprint. However, there's no contesting its excellent overall performance, with a high clean air delivery rate and superb particle filtration. Instead of conventional replaceable filters, most of the NuWave model's filters are washable and reusable. This system comprises a stainless steel mesh pre-filter, two 'Bio-Guard' filters for viruses and bacteria, an ozone filter, and a combined HEPA/pellet-type activated carbon filter. Except for the HEPA/activated carbon filter, which you need to replace every year, the manufacturer advertises these parts to have a 20-year lifespan, though you must wash them periodically.

It features a bevy of particle sensors and a few fully automatic operating modes, allowing it to adjust its fan speed in real-time according to the current ambient particle counts, so there's no need to wake up and make any adjustments if air quality takes an overnight dive. It's also Wi-Fi enabled, and you can operate it remotely using the NuWave Connect companion app. If you're looking for another high-end air purifier, the Dyson Purifier Big+Quiet Formaldehyde BP04/BP03 is a solid option that's even quieter at its highest fan speed compared to the NuWave. That said, its overall air purification performance is inferior.

Look at the Levoit Vital 200S for a less expensive air purifier. It runs almost as quietly as the NuWave at its lowest fan speed, so it's just as discrete if you leave it running later at night. It also features a built-in light sensor, which turns off the display when you bring it into a dark room; that said, there's no quick way of activating this function, which has to be enabled through the Levoit VeSync companion app. You can also use the companion app to monitor air quality in real time. It has a slightly simpler filtration system than the NuWave OxyPure, with no extra 'BioGuard' or ozone filters. That said, its onboard HEPA filter is very effective in trapping the majority of airborne particles, and it has a clean air delivery rate that's high enough to render it a suitable choice for small to medium-sized rooms.

If you don't need Wi-Fi connectivity, the Winix 5500-2 is a stellar alternative, with similar overall particle filtration performance, similarly low operating noise, and similar overall dimensions. That said, unlike the Levoit, the Winix has a built-in ionizer. This system imparts a negative charge to smaller airborne particles, causing them to stick together and fall out of the air, where you can then dust or vacuum them away. Unfortunately, these systems also produce ozone as an operating byproduct, which can irritate your respiratory system. Thankfully, in the case of the Winix, you can easily turn off the ionizer, which has a negligible impact on particle filtration performance anyway.

If you want to spend less on an air purifier for use in bedrooms and don't mind sacrificing some smart features, the Levoit Core 300 is a great option. Unlike the Levoit Vital 200S, it has no Wi-Fi connectivity and no built-in particle sensors; in real-world terms, you can't operate the device remotely using your smartphone, and it's incapable of automatically adapting to air quality changes in real time.

That said, this simpler air purifier has got it where it counts. It has a smaller overall footprint than the Vital 200S, making it easier to fit in smaller rooms, and it delivers good overall air purification performance, though admittedly not when the device is running at its lowest possible fan speed. All the same, this won't be a huge issue if you leave it running all night.

The Levoit Core 200S is the best air purifier for a small room we've tested. This device is even more compact than the Levoit Core 300, allowing you to fit it fairly easily on a dresser or shelf. However, it does lag behind its bigger sibling in raw performance. It does a worse job of trapping the smallest airborne particles, and its clean air delivery rate is a little on the lower end of the scale. It also runs slightly louder at its lowest fan speed, though the operating noise is still just a very low murmur.

Unlike the Core 300, the Core 200S is Wi-Fi enabled, which allows you to change device settings, set operating schedules, and send filter replacement or cleaning notifications through the VeSync companion app. However, there is no particle sensor, so the device can't automatically adapt to real-time changes in ambient particle levels. You also can't monitor air quality yourself.