Quotation on request
Sub-HEPA (EPA) filters
Close-pleated sub-HEPA (EPA) panel filters on ultra-fine glass fibre or polypropylene paper, rated 95 % to 99.95 %, for cleanrooms and areas between medium and HEPA stages.

Description
Sub-HEPA (EPA) panel filters are close-pleated blocks of ultra-fine glass fibre paper or polypropylene paper, with filtration efficiency between 95 % and 99.95 %. They capture 1–5 µm particles at moderate resistance and sit between medium-efficiency pre-filtration and terminal HEPA stages. The close-pleat construction gives a large media area in a shallow depth, and the sealed frame keeps bypass air to a minimum.
Features
- Close-pleated ultra-fine glass fibre or polypropylene paper media.
- Efficiency range 95 % to 99.95 % depending on the class ordered.
- Large media area for the frame size, with low operating resistance.
- Sealed frame construction to limit bypass leakage.
Applications
- Intermediate and terminal filtration in cleanrooms and laboratories
- Semiconductor, precision electronics and instrument manufacturing
- Pharmaceutical production, hospital areas and operating rooms
- Food processing, automotive painting and nuclear research facilities
Supply scope
What is supplied, and what stays with the buyer.
- Panel filters in the confirmed size, depth, frame material and efficiency class.
- Matching gasket or seal position to the installed holding frame.
- Installation, in-situ leak testing and final balancing stay with the buyer.
Configurations
Fixed configurations that can be quoted.
A configuration code fixes the dimensions, electrical data, materials and documents. Quote requests that reference a code skip the specification round.
What we need to quote
Inputs that fix the configuration.
- 01
Frame size W×H×D (mm) and the holding frame or housing the filter must fit
- 02
Efficiency class required (within the 95 % to 99.95 % range) and rated airflow
- 03
Frame material and sealing method of the installed frame
- 04
Quantity, expected replacement cycle and destination country or port
Documents
What ships with the quotation and the goods.
Documents are tied to configurations. Items marked as sent with the quotation are shared with qualified enquiries and are not published here.
- Specification sheetSpecification sheetBeing prepared
Packing and spare parts
Freight planning and first-line maintenance.
Packing
Packing data per unit is stated with each quoted configuration.
Spare parts
Spare parts are listed with each quoted configuration.
Questions buyers ask
Before the first quotation.
Related guides
HEPA replacement checklistRequest a quotation
Quote sub-hepa (epa) filters as a fixed configuration.
A quotable request names the product family, the key specifications or the fact that they are still open, the quantity, the destination and who will install on site.