The Evolution Air pre-filter is a genuine filter disc for the Böhler Welding powered air-purifying respirator, 20 pcs per pack. Each disc is fitted over the P R SL main filter: it stops larger particles from the breathing air, so the main filter clogs more slowly. The unit has two filter seats, so the pack covers 10 changes.
Technical specifications
| Catalogue number | 57097 |
|---|---|
| Brand | Böhler Welding |
| Compatible with | Evolution Air (77008, 77011) |
| Type | pre-filter (disc) |
| Function | stops larger particles, extends main filter life |
| Fitting | over the main filter, under the filter cover |
| Replacement | when the warning alarm sounds (check or replace) |
| Unit | 2 discs per change |
| Pack quantity | 20 pcs (bag) |
Who it is for
For Evolution Air users who weld or grind in heavy dust and change pre-filters often. The 20-piece pack covers routine changes; the larger pack holds 40 pcs.
Key features
- Disc fitted over the P R SL main filter, under the spark arrestor and filter cover.
- Stops larger particles and extends the life of the P R SL filters.
- Tool-free change: remove the cover, swap the disc, refit the cover.
- 20 pcs per bag.
When to replace the Evolution Air pre-filter
The Evolution Air manual says to check or replace the pre-filter as soon as the warning alarm sounds; in very dusty areas this may be needed often. With low airflow, change the pre-filter first and the main filter only if that does not help. The pre-filter must cover the main filter; do not clean a used one.
Compatible with
The Evolution Air unit and the kits built on it:
- Böhler Welding Evolution Air PAPR blower unit, complete kit with filters
- Böhler Welding Evolution Air motor unit, PAPR blower without filters
- Böhler Welding Guardian 62 Air Kit, welding helmet with Evolution Air PAPR
- Böhler Welding Guardian 62F Air Kit, flip-up welding helmet with Evolution Air PAPR
- Böhler Welding Evolution Vision 65F Air Kit, flip-up welding helmet with Evolution Air PAPR
- Böhler Welding Evolution Vision 65FM Air Kit, auto-shade welding helmet with Evolution Air PAPR
- Böhler Welding Evolution V80 Air Kit, welding helmet with Evolution Air PAPR
- Böhler Welding Evolution V80M Air Kit, auto-shade welding helmet with Evolution Air PAPR
- Böhler Welding Big Vision Air Kit Evolution Air, grinding visor with Evolution Air PAPR
Guardian Air uses a different pre-filter: Böhler Welding pre-filter Guardian Air (10 pcs).
Consumables and spare parts
- Böhler Welding pre-filter Evolution Air (40 pcs)
- Böhler Welding odour pre-filter Evolution Air (6 pcs)
- Böhler Welding P R SL particle filter Evolution Air (4 pcs)
- Böhler Welding spark arrestor Evolution Air (2 pcs)
- Böhler Welding filter cover Evolution Air (2 pcs)
All PAPR parts: Filters and powered air parts.
Documents
- Evolution Air instruction manual (PDF, multilingual)
- Evolution V80 Air Kit fact sheet with Evolution Air spare parts (PDF, English)
- PPE & accessories catalogue 2023/24 (PDF, English)
Frequently asked questions
How many pre-filters do I fit at once?
Two, one on each Evolution Air main filter.
Does the pre-filter replace the P R SL filter?
No. It is only a first layer; TH3 protection comes from the P R SL main filter underneath.
How does it differ from the odour pre-filter?
The Böhler Welding odour pre-filter Evolution Air (6 pcs) goes in the same place instead of the standard pre-filter. Only the Böhler Welding A1B1E1 P R SL gas filter Evolution Air (2 pcs) protects against gases.
