GUANLIN high efficiency combination filter set, H13 H14 HEPA panel with matched pre-filter for cleanroom terminal filtration.
High efficiency combination sets pairing an H13/H14 HEPA panel with a matched pre-filter, so terminal cleanroom filtration is engineered as one system with predictable change intervals.
Description
The most common reason a HEPA filter fails early is not the HEPA filter. It is the pre-filter in front of it that was undersized, bypassing, or simply not changed. A combination set solves that by supplying the HEPA panel together with a matched pre-filter, so the two stages are designed as one system rather than assembled from whatever was on the shelf.
Why Choose GUANLIN High Efficiency Combination Sets
- Matched stages — HEPA panel and pre-filter selected together for the duty.
- H13 / H14 efficiency — meets cleanroom classification requirements.
- Extended HEPA life — the pre-filter carries the dust load that would otherwise reach the HEPA media.
- Consistent frame interface — both stages seat in the same opening without adapters.
- One part number — the whole terminal assembly ships and is tracked as a set.
- Custom sizes — matched to your ceiling grid or terminal box.

Application Scenarios
Cleanroom terminal filtration
ISO 5–8 cleanrooms rely on H13/H14 terminals with a defined pre-filter stage; supplying them together keeps the design intent intact.
Pharmaceutical sterile areas
Grade A–D environments require validated HEPA terminals with controlled pre-filtration for audit readiness.
Hospital operating theatres
Terminal HEPA with matched pre-filter protects the sterile field and keeps change intervals predictable.
Electronics and semiconductor
Particle-sensitive production demands terminal HEPA with reliable staging upstream.
Laboratories and bio-safety cabinets
Supply and exhaust HEPA terminals are supplied with matched pre-filters.
Food and beverage clean areas
Hygienic production zones with defined air cleanliness and validated change schedules.

Our Factory

GUANLIN has manufactured filtration products in Dongguan since 2003, operating a 6,000 m² plant with automated filter bag sewing lines, automated singeing equipment, cage welding systems and pleated filter production lines. Products are exported to Singapore, Vietnam, Malaysia and other markets, with ISO 9001 and ISO 14001 certified quality management.
Applicable Working Conditions
- Cleanroom terminal and ceiling grid installation
- ISO 5–8 target cleanliness with H13/H14 terminals
- Gasket-sealed frame interface

Product Specifications
| Item | Specification |
| Set Contents | HEPA panel + matched pre-filter |
| HEPA Efficiency | H13 (99.95%) / H14 (99.995%) @ MPPS |
| Media | Glass fibre HEPA paper, mini-pleat |
| Frame | Aluminium or galvanised, gasket sealed |
| MOQ | 20 sets |

FAQ
Q1. Why supply both stages together?
Matched staging is what actually protects the HEPA filter and keeps change intervals predictable.
Q2. H13 or H14?
H13 for ISO 6–7, H14 for ISO 5 and higher-risk applications.
Q3. Is each panel leak tested?
Yes, scan tested before shipment; on-site DOP testing is still recommended.
Q4. MOQ and lead time?
20 sets, 15–25 days.
Key Specifications
- Set: HEPA panel + matched pre-filter
- Efficiency: H13 / H14
- Sizes: standard and custom
- MOQ: 20 sets




