Guardian Air is the lighter Böhler Welding PAPR system as a complete kit, without helmet. The blower unit with battery and filter weighs 870 g, delivers 180-220 l/min of air cleaned by a P R SL filter in 6 levels and meets class TH3 to EN 12941. The 5200 mAh battery lasts up to 8 h at the lowest level.
Technical specifications
| Catalogue number | 86692 |
|---|---|
| Brand | Böhler Welding |
| Model | Guardian Air, complete kit without helmet |
| Air flow | 180-220 l/min, 6 levels |
| Protection class (EN 12941) | TH3 P R SL |
| Filter | P R SL |
| Battery capacity | Li-Ion 7.4 V, 5200 mAh |
| Battery operating time | up to 8 h (lowest level), 6 h (highest) |
| Charging time | 4-6 h (universal charger) |
| Alarm | visual and audible below 170 l/min |
| Weight | 870 g with battery and filter |
| Noise level | 65 dB |
| Operating temperature | 0 to +40 °C |
| Pack quantity | 1 kit |
| Standards | EN 12941 |
Who it is for
- Owners of Böhler Welding Air series helmets for whom a particle filter is enough.
- MIG/MAG, TIG, MMA welding and grinding in workshops where the hazard is fume and dust, not gases.
- Work where weight on the belt matters: 870 g instead of 1120 g for Evolution Air.
- Shifts of up to 8 h at the lowest blower level.
Guardian Air cleans ambient air but does not supply it: no work in tanks and ducts without ventilation, in air poorer in oxygen than 19.5 %, in explosive atmospheres or in strong wind.
What makes the Guardian Air different
- Air flow of 180-220 l/min in 6 levels, changed with the +/- buttons held for 2 s.
- A microprocessor holds the set air flow, also with a clogged filter and a weakening battery.
- Visual and audible alarm at air flow below 170 l/min and a visual alarm for a low battery.
- Li-Ion battery 7.4 V, 5200 mAh: up to 8 h at the lowest level and 6 h at the highest, charging 4 to 6 h.
- Weight 870 g with battery and filter; the filter cover opens without tools.
- The fleece pre-filter is pulled over the main filter and must cover it completely.
- Works at 0 to +40 °C with a noise level of 65 dB.
In the box
- Guardian Air motor unit with fitted P R SL particle filter, pre-filter, spark arrestor and filter cover
- Standard Li-Ion battery 5200 mAh
- Universal charger
- Flexible air hose
- Comfort hip belt
- Airflow tester
- Instruction manual
Compatible with
Helmets certified with Guardian Air (head sizes 535 to 600 mm), all in class TH3 with the P R SL filter:
- Böhler Welding Guardian 50M Air welding helmet for PAPR powered air systems, Böhler Welding Guardian 50FM Air flip-up welding helmet for PAPR powered air systems, Böhler Welding Guardian 62 Air welding helmet for PAPR powered air systems and Böhler Welding Guardian 62F Air flip-up welding helmet for PAPR powered air systems
- Böhler Welding Evolution Vision 65F Air flip-up welding helmet for PAPR powered air systems and Böhler Welding Evolution Vision 65FM Air auto-shade welding helmet for PAPR powered air systems
- Böhler Welding Big Vision Air grinding visor for PAPR powered air systems: grinding visor
- Böhler Welding Laser Guard Air laser and hybrid welding helmet for PAPR powered air systems: helmet for laser and arc welding
Consumables and spare parts
- Böhler Welding P R SL particle filter Guardian Air (4 pcs): P R SL main filter, works no longer than 2 weeks or 90 h (whichever is longer)
- Fleece pre-filters Böhler Welding pre-filter Guardian Air (10 pcs) and odour pre-filters Böhler Welding odour pre-filter Guardian Air (5 pcs)
- Böhler Welding spark arrestor Guardian Air and Böhler Welding filter cover Guardian Air: spark arrestor and filter cover
- Batteries Böhler Welding standard battery 5200 mAh Guardian Air, Evolution Air or Böhler Welding heavy-duty battery 7800 mAh Evolution Air, Guardian Air with the Böhler Welding universal PAPR charger Evolution Air, Guardian Air charger, quick-charge Böhler Welding heavy-duty quick-charge battery 7800 mAh Evolution Air, Guardian Air with the Böhler Welding PAPR quick charger for the quick-charge battery Evolution Air, Guardian Air
- Hoses Böhler Welding FLEX flexible air hose up to 180 cm Evolution Air, Guardian Air and Böhler Welding standard air hose 100 cm Evolution Air, Guardian Air, Supplied Air, covers Böhler Welding air hose cover up to 120 cm Evolution Air, Guardian Air and Böhler Welding air hose cover up to 180 cm Evolution Air, Guardian Air
- Belts Böhler Welding small hip belt Supplied Air, Guardian Air, Böhler Welding PAPR hip belt Evolution Air, Guardian Air and Böhler Welding leather hip belt PAPR Evolution Air, Guardian Air, extension Böhler Welding hip belt extension 265 mm PAPR, Supplied Air, harness Böhler Welding PAPR shoulder harness Evolution Air, Guardian Air, Supplied Air (optional), tester Böhler Welding ball rotameter, airflow tester for PAPR and Supplied Air
- Face seals, chosen to match the helmet: Böhler Welding face seal Guardian 50M Air, 50FM Air, 62 Air, 62F Air, Big Vision Air for Guardian Air and Big Vision Air helmets, Böhler Welding face seal Evolution Vision 65F Air, 65FM Air for Evolution Vision 65 Air
- Replacement motor unit with filter cover: Böhler Welding Guardian Air motor unit with filter cover, PAPR blower without filters
To start, add: Böhler Welding P R SL particle filter Guardian Air (4 pcs), Böhler Welding pre-filter Guardian Air (10 pcs) and Böhler Welding standard battery 5200 mAh Guardian Air, Evolution Air.
More respiratory systems and kits are in the Powered air systems category.
Standards and certificates
EN 12941:1998+A1:2003+A2:2008, class TH3 P R SL, nominal protection factor 500. CE and UKCA marked. Manufacturer warranty: 24 months on the blower unit, 6 months on the battery. Spawlab is the authorised distributor and service partner of Böhler Welding in Poland. Inspections, repairs and parts: Spawlab service in Krotoszyn.
Documents
- Guardian Air instruction manual (PDF, multilingual)
- Guardian Air P R SL filter instructions (PDF, multilingual)
- Guardian Air and Guardian 50M/50FM Air Kit fact sheet (PDF, English)
- PPE and accessories catalogue 2023/24 (PDF, English)
Frequently asked questions
Does Guardian Air fit my helmet?
It fits the helmets listed above, which have a face seal and a hose connector. For the Evolution V80 Air and V80M Air the manufacturer documents list certification only with Evolution Air, so choose the Böhler Welding Evolution Air PAPR blower unit, complete kit with filters for them.
Guardian Air or Evolution Air?
Guardian Air is enough when you protect yourself against fume and dust, and it weighs 870 g instead of 1120 g. You pay extra for the Böhler Welding Evolution Air PAPR blower unit, complete kit with filters when you need A1B1E1 P R SL gas filters, up to 14 h of work instead of 8 h, up to 240 l/min and a vibrating alarm.
How long does the battery last and how do I charge it?
The 5200 mAh battery lasts up to 8 h at the lowest level and 6 h at the highest. The universal charger charges it in 4 to 6 h; before first use, run the system until the battery is flat and charge it for 16 h. Spares are Böhler Welding standard battery 5200 mAh Guardian Air, Evolution Air or Böhler Welding heavy-duty battery 7800 mAh Evolution Air, Guardian Air.
When does Guardian Air raise an alarm?
When the air flow drops below 170 l/min, the unit signals it with light and sound; a low battery is shown by a visual alarm. After an air flow alarm you stop work, leave the zone and check the pre-filter, the main filter and the battery.




