But what’s the difference, and which one do you need?
Essentially, air purifiers are meant to clean the air, while humidifiers are meant to dampen it.
(viaReviews of Air Purifiers).

This means they can pull most allergens and irritants right out of the air.
This can become especially problematic in winter months when dry heat is used in the home.
Specifically, evaporative humidifiers can be used with all types of air purifiers, even in the same room.
