Allegro 9350-04 Papr Particulate Prefilter

Product Description

The ALLEGRO 9350-04 is a particulate prefilter designed for use with Powered Air-Purifying Respirator (PAPR) systems. It mounts upstream of the main filter cartridge to capture larger airborne particles before they reach the primary filtration stage, extending the service life of downstream filter media. This prefilter is intended for environments where workers face particulate hazards such as dust, debris, or coarse aerosols. Installation and replacement are typically performed by safety personnel, industrial hygienists, or trained tradespeople responsible for maintaining respiratory protection equipment on the job site.

The 9350-04 prefilter is suited for use in industrial, construction, and manufacturing environments where PAPR systems are deployed for particulate respiratory protection. It is packaged individually, making it practical for on-demand replacement during routine maintenance of PAPR equipment. Typical applications include settings with elevated dust concentrations, abrasive blasting operations, or other particulate-generating processes where continuous-flow respiratory protection is required.

Key Features

• Particulate protection designed for PAPR system prefilter stage
• Extends service life of downstream primary filter cartridges by capturing coarse particles first
• Individual packaging supports single-unit replacement and inventory management
• Compact form factor fits PAPR system filter housing

Compatibility

Designed as an OEM-style prefilter replacement for ALLEGRO PAPR respirator systems that accept the 9350-04 prefilter format. Confirm compatibility with your specific PAPR unit before installation.

Installation Notes

Prefilter replacement on PAPR systems should be performed by trained personnel following the respirator manufacturer's maintenance procedures. Power down the PAPR blower unit before opening the filter housing and replacing the prefilter. Inspect the filter housing seal and gasket for wear during each prefilter change. Follow applicable OSHA respiratory protection standards and the site's written respiratory protection program when servicing PAPR equipment.