Use CPI Filter Fans to propel the cool ambient air into the enclosure. The patented click mechanism on the Filter Fans have a unique four-corner fastening system that enables safe and quick, tool-less installation, maintains the rated seal, and allows the filter medium to be replaced in seconds.

For intake fans, once installed, a slight positive pressure builds up inside the cabinet, so that only air filtered by the Filter Fans flows into the enclosure. The air propelled into the cabinet displaces the warm air which exits through the exhaust filter.
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