Ace 91-955-6 Air Scrubber Prefilter 1040 Cfm

Product Description

The ACE 91-955-6 is a prefilter designed for use with portable air scrubber units. It operates at 1040 CFM airflow and delivers 40 percent efficiency at full load, making it suitable for jobsite air-cleaning applications where coarse particulate is present. At 2 inches thick, this filter provides mechanical pre-filtration that extends the service life of downstream primary filters. Four prefilters are required per unit installation. Licensed contractors and restoration professionals handling dust, debris, and airborne particulate in contained work areas are the primary installers of this filter type.

This prefilter is specifically rated for use with ACE portable air scrubber units 73-601 and 73-801. It is commonly installed in commercial and residential restoration, remediation, and construction environments where portable negative-air or air-scrubbing equipment is deployed. The prefilter stage captures larger particles before they reach the primary or HEPA filter stage, reducing change-out frequency on higher-cost filter media. Sold in a package quantity of six, this SKU supports stocking for multi-unit deployments or routine scheduled maintenance.

Key Features

• 1040 CFM rated airflow matches ACE 73-601 and 73-801 portable air scrubber units
• 40 percent filtration efficiency at full load for coarse particulate capture
• 2-inch overall thickness for mechanical pre-filtration stage
• Four filters required per unit, protecting downstream primary filter media
• Packaged in quantities of six to support scheduled maintenance and multi-unit inventories

Compatibility

Designed for use with ACE portable air scrubber units 73-601 and 73-801. Four filters are required per unit installation.

Installation Notes

Power down and unplug the air scrubber unit before replacing any filter media. Four prefilters must be installed per unit - do not operate the unit with fewer than the required number of filters in place. Follow the equipment manufacturer service interval recommendations and inspect prefilters regularly in high-particulate environments. Restoration technicians and IAQ contractors typically perform this service as part of routine equipment maintenance.