Replacement prefilter element for IQAir Cleanroom Series H11 and H13. Fine-dust filtration with mini-pleat media. Prolongs the life of the HEPA filter.
Prefilter Efficiency: 55% at .3 microns
Prefilter Surface Area: 32 sq ft mini-pleat fine dust filter
Filter Life: Replace every 6-18 months (filter life is dependant on the operating environment)