GUANLIN high efficiency filter combination, staged HEPA filter set for cleanroom air handling systems.
Staged high efficiency filter combinations pairing pre-filter, medium efficiency and HEPA stages for cleanrooms requiring controlled particle counts.
Description
A HEPA filter on its own is a expensive way to filter air badly. Load it with coarse dust and it blinds in weeks, and every replacement costs the price of a high efficiency element. Staging the filtration — coarse, then medium, then HEPA — puts the cheap media where the bulk of the dust is and lets the HEPA stage do only the work it is uniquely suited to.
Why Choose GUANLIN High Efficiency Combinations
- Staged protection — HEPA life extended several fold.
- Matched pressure drops — stages selected to work together.
- H13 / H14 final stage — cleanroom-grade particulate removal.
- Consistent frame sizes — fits standard AHU racks.
- Single supply — all stages from one manufacturer.
- Lower total cost — cheaper media takes the bulk load.

Application Scenarios
Pharmaceutical cleanrooms
Grade C and D area air supply.
Electronics manufacturing
Particle control in assembly areas.
Hospital operating theatres
Staged supply air filtration.
Food production clean areas
Controlled atmosphere processing rooms.
Laboratory facilities
Clean bench and fume hood supply.
Cosmetics and personal care
Filling and packaging clean zones.

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.
Product Specifications
| Item | Specification |
| Configuration | Pre-filter + medium efficiency + HEPA |
| Final Stage | H13 / H14 |
| Frame | Aluminium or galvanised |
| Sealant | Polyurethane, leak tested |
| MOQ | 20 sets |

FAQ
Q1. Can I buy the HEPA stage alone?
Yes, but staging is recommended for life and cost.
Q2. Are the filters individually tested?
HEPA stages are leak tested before dispatch.
Q3. What is the recommended change interval?
Pre-filter monthly to quarterly; HEPA on pressure drop or certification cycle.
Q4. MOQ and lead time?
20 sets, 15–25 days.
Key Specifications
- Configuration: pre + medium + HEPA stages
- Final stage: H13 / H14 available
- Application: cleanroom AHU
- MOQ: 20 sets





