Drake Mechanical can help you out today. York's Media air filters installed in your home will really make a difference. These media air filters for your whole house are the professional grade. This air filter reduces antigens and allergens that are normally re-circulated through the air. This air filter removes 97% of pollen size particles. This whole house air filter system also reduces 85% of fungi-size particles. One of the other bonuses to this air filter system is that it has a 1-2 year filter service life. The filters that are used with this system are a MERV 11 and MERV 13 (MERV stands for minimum efficiency rating value). Please keep in mind that if you are having a new air filtration system installed in your home you should have your ducts cleaned first so that you are really starting fresh with a nice new clean air filter system and clean ductwork. You can get these filtration cabinets in a bunch of different filter sizes so that they will work with most any furnace, air handler or homes heating system.