The Evolution Vision air duct is the connector on the Evolution Vision 65F Air and 65FM Air helmets with air supply, into which you plug the hose from the Böhler Welding blower unit. These helmets are certified with Evolution Air (TH3 P R SL), Guardian Air and Supplied Air (4A).
Technical specifications
| Catalogue number | 87441 |
|---|---|
| Brand | Böhler Welding |
| Compatible with | Evolution Vision 65F Air, 65FM Air |
| Type | air duct on the helmet |
| Connection | bayonet connector |
| Unit | Evolution Air, Guardian Air, Supplied Air |
| Pack quantity | 1 pc |
Who it is for
For Evolution Vision 65F Air and 65FM Air users with a cracked or worn air duct. The air duct belongs to the helmet, and the helmets are certified with Evolution Air, Guardian Air and Supplied Air.
Key features
- Hose connector on the Evolution Vision 65F Air and 65FM Air helmets.
- Bayonet connector for the hoses of Böhler Welding air systems.
- Separate item in the Evolution Vision parts list of the 2023/24 catalogue.
- Different from the Guardian Air helmet duct (87143).
Connecting the hose to the Evolution Vision air duct
To connect the hose, align the pins of the bayonet connector with the slots in the air duct, push in to the bottom and turn gently until the pins clip into place. With low airflow, the manual says to check the hose and air duct for blockage and clear it.
Compatible with
The Evolution Vision 65F Air and 65FM Air helmets and the kits with them:
- Böhler Welding Evolution Vision 65F Air flip-up welding helmet for PAPR powered air systems
- Böhler Welding Evolution Vision 65FM Air auto-shade welding helmet for PAPR powered air systems
- 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
The helmets work with these units: Böhler Welding Evolution Air PAPR blower unit, complete kit with filters, Böhler Welding Guardian Air PAPR blower unit, complete kit with filter, Böhler Welding Supplied Air compressed air regulator for air-fed helmets, complete kit.
Consumables and spare parts
- Böhler Welding face seal Evolution Vision 65F Air, 65FM Air
- Böhler Welding FLEX flexible air hose up to 180 cm Evolution Air, Guardian Air
- Böhler Welding standard air hose 100 cm Evolution Air, Guardian Air, Supplied Air
- Böhler Welding air hose O-ring PAPR (20 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 fit Guardian Air helmets?
No. Guardian 50M, 50FM, 62, 62F Air and Big Vision Air use the Böhler Welding air duct Guardian 50M Air, 50FM Air, 62 Air, 62F Air, Big Vision Air.
Which units does the helmet work with?
Evolution Vision 65F Air and 65FM Air are certified with Evolution Air, Guardian Air and Supplied Air.
What if the airflow is weak?
The manual says to check the hose and air duct for blockage and inspect seals and connectors; other causes are an undercharged battery and a clogged filter.




