By the looks of it, it’s only a matter of time until the Air Purifiers are going to be as common as air conditioners. It’s very easy to feel the difference in the air quality the minute you start using one. You’re actually going to be able to notice all the dirt in the filter, so it’s going to be pretty obvious why you should use one asap.
As long as you’re choosing the right air purifier, you shouldn’t have any second doubts when buying. Look for the coverage area, filter type or the CADR rate (Clean Air Delivery Rate).