The company itself will even help out on occasion. You can send in your old filters for recycling, and there's an option to have Sprimo analyze filters to determine exactly what they've caught. If there's an infestation, you might find out before you see a bug scurrying across the floor.

This isn't a trivial expense. You're looking at a minimum $319 pledge (normally $369) to get a purifier, and it'll cost you another $59 for a spare filter. The finished product also won't arrive until February 2017 at the earliest, assuming the project meets its goal. Nonetheless, it could be a small price to pay if you're either sensitive to air conditions (say, due to allergies) or live in a polluted area where clean skies are a relative rarity.