Space-Gard/AprilAire

97% efficient by weight of airborne particles ranging as low as 0.01 microns.
The MERV 11 no-tear micro-fiber expandable media is strung for easy media replacement. The very low pressure drop media characteristics allows for better heating and cooling equipment operation.
The efficient media design extends filtration effectiveness. The micro-fiber media replacement interval is every 12 months, versus cartridge media filters required at 6 months.