Purolator Defiant Mark 80-D Pleated Air Filter The DEFIANT MARK 80-D is a medium efficiency, self-supported, extended surface, pleated air filter. It outperforms similar products in initial efficiency and average efficiency, providing maximum filter service life. The MARK 80-D is effective in standalone applications in place of a disposable, permanent, or media pad-frame filter. When you want cleaner air and a filter with a longer service life, consider the Purolator MARK 80-D pleated filter. The media area and initial air flow resistance have been carefully balanced to withstand flow up to 625 FPM while maximizing dust-holding capacity. EconomicalMedium efficiency filtration drastically reduces your costs by protecting expensive heating and air conditioning equipment from the damaging effects of dirty air.EfficientThe MARK 80-D is made of continuous, synthetic, and hydrophobic (non-waterabsorbing)fibers featuring maximum dust-retention capabilities. When tested in accordance with ASHRAE testing method 52.1-1992, this fiber blend provides a 30-35% average efficiency and a 90-93% average arrestance. This filter media has maximum dust retention capabilities.DurableThe MARK 80-D filter elements are enclosed in a two-piece, heavy-duty beverage board with high wet strength. When assembled, the fully bonded double-wall frame combines with the integral corner flaps to form a rugged, durable filter which will not rack, warp, or leak under normal operating conditions.DependableFor support, the filter media is continuously bonded to a corrosion-resistant, 28-gauge, expanded metal grid allowing a 95% open face area. This media is formed into aerodynamic wedge-shaped pleats, maximizing the working surface area of the MARK 80-D filter. To eliminate the possibility of dirty air bypass, the media pack is securely bonded to the edge of the enclosure frame.
Based on ASHRAE Test Standard 52.1-1992: Average efficiency: 30-35% Average arrestance: 90-93% Based on ASHRAE Test Standard 52.2 MERV(Mimimum Efficiency Rating Value): 8 Mark 80-D Construction FeaturesThermally bonded, continuous, synthetic, and hydrophobic fibers. Expanded metal support grid Adhesive bonds media to enclosure frame Diagonal support members bonded to pleats Double wall construction High wet strebgth beverage board frame |