Delta M air filters have up to a 12 x longer life with energy/water and carbon footprint efficiency that improves with recycling. After four washes their energy usage is less than cardboard filters. They won’t fail or blow out – ever.
Most high-energy efficiency filters are paper-thin. Air flows freely so initial resistance is low and energy savings high. But in very short order, as filters get dirty, initial MERV ratings drop significantly. With electrostatic filters, a MERV 13 is quickly a MERV 8 due to dissipation of electrostatic charge on the filter. ASHRAE Journal shows build-up on coils contributes to an 11% to 15% increase in energy use.