High Efficiency filtration systems should be installed in new homes and existing homes alike. understanding that air pollutants are a serious health issue on the rise, you will be happy to know that high efficency filter can help. With the Trane Perfect Fit filter system, you can improve indoor air by eliminating particles from your home. Having clean air is what makes your home truly comfortable and healthier. Did you know that an average sized home can produce up to 40 pounds of dirt and debris per year? It is a fact that your indoor air is more polluted than the air you breathe outside your home. So imagine eliminating the airborne particulate flying around your home with the use of one centrally located air filter.