AirSoap’s claim that it'll conserve you “thousands” in the cost of substitution filters is absurd—you’d have to exchange the filter to the Coway Mighty 20 situations to succeed in even $1,000, which means you’d need to run it for 20 years.Levoit’s Vital 200S matched the Coway Airmega AP-1512HH Mighty in effectiveness tests, and The 2