Hello. I have a 1.5 story home in Long Island NY and am having a central air conditioning system put in. I'm getting the infinity system (condenser/AH/Thermostat). Ductwork is being added as I'm writing you and the installer has asked me if I want a media filter added instead of a filter grill. He is recommending a Aprilaire 2210. I have 2 small children, but no allergies and have a cat & dog. Are they really worth the added expense? Price is reasonable after reviewing some other estimates I received.