Coastal Aire, They are Con artist's, the cost of the Air filter system canister is $1000. ea. On E-Bay the same thing cost around $100.00, same manufacture (1, ooo %) mark up! They pray on the unsuspecting, on elderly, handicapped low income people. U could not sell the stuff back to them for what the made u pay for them! they are not willing to give back MONEY I payed with in the (three day period). advice: stay a way from: Traveling sales people ( period). read full review »