Air purifiers filter particles in the air, such as dust or smoke, and circulate clean air back into the room. People with asthma may find these devices help reduce indoor asthma triggers.
An air purifier is a device people can use in the home to help remove indoor pollutants or allergens. While some research indicates that air purifiers may benefit people with asthma, reducing or eliminating the trigger source may be the most effective strategy.
This article explores how effective air purifiers are for people with asthma, what to look for in an air purifier, and other steps to improve indoor air quality.