Pre Filter
The pre-stage for AHU intake and exhaust, and ahead of medium filters. It washes out for two more rounds, and we cut it to whatever size you ask for — flame-retardant if needed. Because we stock the non-woven media ourselves, odd sizes are no trouble.
Efficiency 80%↑ (A.F.I)
Used in
- AHU / general HVAC
- Fresh-air intake & exhaust
- Medium filter pre-treatment
Construction
- Frame
- Aluminum, Galvanized Steel, Stainless Steel
- Media
- Polyester, Glass Fiber
- Standard velocity
- 2.5 m/sec
Specifications
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| Model | Size H×W×D (mm) | Air flow (CMM) | Initial pressure drop (mmAq) | Final pressure drop (mmAq) |
|---|---|---|---|---|
| BO-PR662W | 610×610×25 (594×594×25) | 56 | 8 | 16 |
| BO-PR632W | 610×305×25 (594×288×25) | 28 | 8 | 16 |
| BO-PR665W | 610×610×50 (594×594×50) | 56 | 7 | 14 |
| BO-PR635W | 610×305×50 (594×288×50) | 28 | 7 | 14 |
Bracketed values are actual dimensions. Washable twice. Flame-retardant and custom builds available.
More in HVAC
Tell us the size you're using now.
We'll confirm whether we can match it — and whether there's a better build.