Check your owner’s manual for specific recommendations and filter life estimates. When choosing an air purifier, it’s important to consider the cost of replacement filters and how often they should be replaced. As the most expensive option on our list, the Dyson Purifier Humidify+Cool Formaldehyde isn’t for everyone. At the time of publication, it costs more than $900, so it’s a significant investment.
If you are looking for an air purifier for a small room or simply don’t want to shell out more money for a more powerful device, the Levoit is a great choice. Recommended for extra large rooms, this HEPA air purifier has 4 air cleaning levels to provide cleaner, fresher air. According to Robert Weitz,
certified microbial investigator and Principal of RTK Environmental, a leading environmental testing firm in the northeast, an air purifier must use a HEPA filter to have any effect on mold spores. “Only an air purifier with a HEPA filter will remove more than 99.97 percent of mold spores in the air.”
Whole-room models also usually feature an indicator light when it’s time to replace your filter. When set to its lowest fan speed, the air purifier remains as quiet as 24dB, allowing for a quiet and peaceful sleep for those that would like to leave it on overnight. If you’re one of the 10 percent to 20 percent of people who are allergic to cats or dogs, investing in an Alen BreatheSmart Classic Air Purifier may bring you relief. Specifically, you’ll want to choose the Pet Dander/Odor model, which contains a HEPA filter that can capture up to 99.9 percent of airborne particles down to 0.1 microns, including pet fur, dander, dust, and allergens. It also has an activated carbon filter, which helps reduce pet odors, litter box smells, and other household scents.
During our long-term use, we’ve repeatedly confirmed that it performs like new even with filters used continuously for a year or longer. Note that all Levoit air purifiers have a three-stage filtration technology — including the personal purification models. This includes the pre-filter, a True
HEPA filter, and an activated carbon filter. Thankfully, these filters combine True HEPA and activated carbon in one, meaning you only have to replace one filter periodically. Levoit is a specific brand that almost exclusively creates appliances centered around various aspects of air quality.
The VeSync app gives you controls over the air purifier, letting you see the indoor air quality, set the fan to one of the four available speeds, Auto, Sleep or Pet Mode, or set schedules and timers. It also has other settings for the display, like light detection to turn off the display during the night, even while the fan is running; display lock; and other settings to customize Auto and Sleep modes. Out of all the air purifiers we tested, the LEVOIT Air Purifier for Home Large Room was our favorite. It has an all-around great design with its effective air purification, intuitive smart and app controls, quiet operation, easy setup, and attractive appearance. If you’re looking for an option with straightforward controls and instructions and don’t mind having a model with fewer cutting-edge features, the TOPPIN Air Purifiers for Pets in Bedroom TPAP001 is our favorite budget pick. The AirSoap, unlike all the other purifiers we have tested, does not contain a physical filter.