STJH-MULTI-STAGE-HOUSING-PRE-HEPA

Multi-Stage Air Filter Housing Two-Stage Prefilter and HEPA

A matched two-stage cabinet that protects the final HEPA with a serviceable upstream coarse filter.

Coarse prefilter plus HEPA
2, 4 or 6 in prefilter depths
Side-access welded cabinet

Request a Quote Browse Products

Product Introduction

This two-stage assembly combines a 2, 4 or 6 in prefilter track with a downstream full-depth HEPA section. The coarse stage captures larger dust before it loads the expensive final element, reducing premature HEPA resistance and extending useful service. A fully welded side-access cabinet keeps both filters in one coordinated pressure boundary while allowing each stage to follow a different replacement trigger.

Key Features

HEPA life protection

The first stage removes coarse loading before it reaches the high-efficiency final filter.

Selectable prefilter depth

Two-, four- and six-inch tracks support different capacity and resistance targets.

Integrated service section

Matched doors and filter tracks keep both stages accessible within one modular housing train.

Technical Parameters

Number of Stages	2
First Stage	Coarse particle prefilter
Prefilter Depth	2, 4 or 6 in
Final Stage	12 in class HEPA filter
Housing Construction	Fully welded metal
Access	Side access
Filter Seals	Matched gasket compression tracks
Primary Purpose	Extend final HEPA service life
Installation	Supply or recirculation AHU
Customization	Available based on the intended application and operating environment.

Applications

For medical and clean-manufacturing air handlers that need dependable final HEPA filtration and a replaceable dust-loading stage upstream.

Solutions for Your Application

Both filters are replaced together even though only the prefilter is loaded.Monitor stage pressure separately and change each element according to its own resistance or integrity criterion.

A high-resistance prefilter consumes too much of the fan allowance.Choose the prefilter depth and efficiency from dust load, service interval and available total static rather than capacity alone.

Available Options

Confirm prefilter grade and depth, HEPA size, cabinet material, access side, individual pressure taps, test ports and duct connections.

Planning a Multi-Stage Air Filter Housing Two-Stage Prefilter and HEPA specification?

Send us your dimensions, installation conditions, performance targets and required surface finish.

Talk to Our Team