As appliances go, air purifiers are pretty unassuming. That little box in the corner of your room can trap particles and pathogens and neutralize fumes and odors, circulating clean, fresh air around the space.
There are smart machines with digital display screens that record and relay information about your indoor air quality, as well as old-school air purifiers for quick and quiet cleaning. In any case, the hard work goes on inside the machine, within the fans and filtration systems. From the outside, it can be hard to tell just what an air purifier does.
