A purolator Defiant Cell high and medium-efficiency, rigid, box air filter.

Purolator Defiant-Cell

High-Efficiency Rigid Box Air Filter

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Defiant Cell Filters - Construction

Defiant Cell™ medium and high-efficiency rigid box filters prolong life cycles. The unique patented non-woven process used to manufacture Defiant Cell™ box filters creates media that outperforms similar products with respect to initial efficiency, average efficiency, and dust holding capacity.

The continuous hydrophobic fibers that make up Defiant Cell™ box filters do not absorb moisture and are thermally bonded to eliminate the need for chemical containing binders that could promote microbial growth or generate VOCs. Defiant Cell™ filters are able to withstand turbulent, high velocity conditions, even when high humidity is a factor.

Fire Resistance - Defiant Cell™ rigid box filters are classified per UL Standard 900 for flammability. The maximum operating temperature for these filters is 180°F.

Improved Efficiency - Defiant media utilizes a dual-stage electrostatic enhancement, and continuous fiber structure to initially capture an increased amount of smaller particulate than conventional glass media–thereby improving overall particle size efficiency.

Construction - The perimeter frame, constructed of high-strength, corrosion-resistant, galvanized steel, is sealed on all sides to maintain filter integrity. Diagonal metal strapping on the air exit side further ensures stability.
The DEFIANT media is continuously bonded to expand, corrosion-resistant, electrogalvanized steel, allowing a 95% open face area. Aerodynamically designed wedge-shaped pleats optimize dust holding capacity while minimizing pressure loss and replacement frequencies.

Applications - Defiant Cell™ 70/85/95 media box filters are specifically manufactured for industrial and commercial HVAC system applications requiring constant or Variable Air Volume (VAV) systems. This product provides 20 - 30% improved dust holding capacity and efficiency beyond that of competitive products. The Defiant Cell™ 70/85/95 media has multiple performance characteristics which combine to provide optimum filter service life, and lower maintenance and energy costs.

Technical Information

Underwriters Laboratories, Inc. Classification: Defiant-Cell filters are classified U.L. Class 2 per U.L. Standard 900.