The Evolution Air odour pre-filter is a variant of the pre-filter for the Böhler Welding Evolution Air powered air-purifying respirator. In the parts drawing of the Evolution Air manual it has the same position as the standard pre-filters 57097 and 57099, so it goes in their place. The pack holds 6 pcs.
Technical specifications
| Catalogue number | 75094 |
|---|---|
| Brand | Böhler Welding |
| Compatible with | Evolution Air (77008, 77011) |
| Type | odour pre-filter |
| Fitting | in place of the standard pre-filter |
| Replacement | on the alarm (check or replace) |
| Unit | 2 pcs per change |
| Pack quantity | 6 pcs |
Who it is for
For Evolution Air users who want the odour version instead of the standard pre-filter. Rated protection against gases and vapours comes only from the A1B1E1 P R SL gas filter; the manufacturer documents give no protection class for the odour pre-filter.
Key features
- Fitted in place of the standard pre-filter, over the main filter.
- Under the spark arrestor and filter cover, like the standard disc.
- 6 pcs per pack, one for each of the two filter seats.
- Tool-free change.
Fitting and replacing the Evolution Air odour pre-filter
Remove the filter cover, take out the used pre-filter, place the new one over the main filter and refit the cover. The Evolution Air manual says to check or replace the pre-filter as soon as the airflow alarm sounds; with low airflow, change the pre-filter first and then the main filter.
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
Version for Guardian Air: Böhler Welding odour pre-filter Guardian Air (5 pcs).
Consumables and spare parts
- Böhler Welding pre-filter Evolution Air (20 pcs)
- Böhler Welding pre-filter Evolution Air (40 pcs)
- Böhler Welding P R SL particle filter Evolution Air (4 pcs)
- Böhler Welding A1B1E1 P R SL gas filter Evolution Air (2 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
Does it protect against welding gases?
The manufacturer documents assign it no protection class against gases. For gases and vapours use the Böhler Welding A1B1E1 P R SL gas filter Evolution Air (2 pcs).
How many do I fit at once?
Two, one on each Evolution Air main filter.
Can I use it together with the standard pre-filter?
It goes instead of the standard pre-filter, in the same place.




