Long filter service lives
Flow rate 100 – 1000 l/min (AERO-GUARD) and 260 – 700 l/min (AERO-GUARD-OX)
The constantly increasing levels of CO2 concentration in the air resulting from unfavourable environmental influences are making it more and more difficult for the operators of filling stations to be sure of achieving compliance with legally binding maximum limits for CO2. With AERO-GUARD you are always on the safe side!
All the information you need at your fingertips!
Efficient cleaning of CO₂ from breathing air
The air taken in by the compressor is routed through the AERO-GUARD via an ingenious bypass system.
Only approximately two-thirds of the air flows through the filter cartridge, which absorbs the CO2 contained in the air.
In this way, the CO2 content is reduced to one-third of the value of the intake air, significantly below the strict limits of DIN EN 12021¹.
At the same time, filter service life is maximised. Air humidification in the housing base safeguards outstanding filter efficiency under all conditions – even in the driest of climates!
¹ Assuming the maximum CO2 input concentration of the intake air is not exceeded.
Efficient removal of CO2 from NITROX downstream of membrane systems
An ingenious bypass system passes the NITROX generated by the NITROX membrane system through the AERO-GUARD-OX. Only about four fifths of the air flow through the filter cartridge, which absorbs the CO2 contained in the NITROX.
This reduces the CO2 content to around 20% of the value at the membrane outlet.
NITROX mixture humidification in the housing base safeguards outstanding filter efficiency under all conditions – even with extremely dry gas mixtures!
At a free air delivery rate of up to 1000 l/min and a CO2 input concentration of 1000 ppm (with AERO-GUARD-OX: 450 l/min), the filter cartridge has a service life of approx. 50 hours (with AERO-GUARD-OX: 37 hours). If the free air delivery rate of the compressor is lower, the service life of the filter cartridge is extended accordingly. If the CO2 input concentration is lower/higher, the service life is extended/shortened accordingly.
Easy handling and maintenance-free
The filter cartridge can be replaced in the blink of an eye without the need for any tools. The water ballast in the base of the barrel, which is necessary to optimise the function of the filter medium, is replaced at the same time.
|Hose internal diameter |
|Area of application|
|Intake hose||60 / 60|
|Intake piece with sleeve||100 / 60|
|Safety valve (100 mbar)|| |
For mounting on NITROX membrane
For mounting the NITROX safety valve
|Hose nozzle||60|| |
For converting the NITROX membrane outlet from hose diameter 40 mm to hose diameter 60 mm
|Intake hose to intake piece|
|Intake hose||60 / 40|| |
|Intake hose||60 / 60|| |
|Intake hose||60 / 40|| |
|Intake hose||60 / 60|| |
|Intake system||60 / 40|| |
|Intake system||60 / 60|| |
|Intake hoses, output side, for older compressor models|
|Intake hose||60 / 32|| |
|Intake hose||60 / 25|| |
|Replacement filter cartridge|
|Filter cartridge incl. 10 water disinfection tables for every 10 litres of water|
|Designation/Size||Suitable for |
free air delivery rates ¹
(W × D × H)
|Operating weight ²|
AERO-GUARD: BREATHING AIR
|Aero-Guard-S||100 – 150||50 × 46 × 72||26|
|Aero-Guard-M||160 – 230||50 × 46 × 72||26|
|Aero-Guard-L||240 – 320||50 × 46 × 72||26|
|Aero-Guard-XL||330 – 450||50 × 46 × 72||26|
|Aero-Guard-XXL||460 – 680||50 × 46 × 72||26|
|Aero-Guard-Duo 1000||650 – 1000||85 × 62.5 × 87||54|
|Aero-Guard-OX-L||260 – 320||50 × 46 × 72||26|
|Aero-Guard-OX-XL||330 – 450||50 × 46 × 72||26|
|Aero-Guard-OX-XXL||460 – 550||50 × 46 × 72||26|
|Aero-Guard-OX-Duo 700||700||85 × 85 × 87||54|
¹ Free air delivery of the connected compressor measured with cylinder filling from 0 – 200 bar ± 5%
² Includes filter cartridge and 10-litre water ballast
|CO2 input concentration:||max. 1000 ppmv CO2||max. 2000 ppmv CO2|
|CO2 output concentration:||1/3 of the input concentration = max. 330 ppmv CO2 at 1000 ppmv input concentration CO2||1/5 of the input concentration = max. 400 ppmv CO2 at 2000 ppmv input concentration CO2|
|Rel. moisture of the intake air:||10 to 100%||10 to 60%|
|Ambient temperature:||+5 to +45°C||+5 to +45°C|
|Temperature of the intake air:||+5 to +45°C||+5 to +45°C|
|Air flow rate:||100 – 1000 l/min||260 – 700 l/min|
|Service life:||50 unit operating hours |
(at free air delivery rate of 680 l/min and 1000 ppmv input concentration CO2)
or 1 year if the unit does not reach this number of operating hours
|37 system operating hours |
(at free air delivery rate of 450 l/min and 1000 ppmv input concentration CO2)
or 1 year if the system does not reach this number of operating hours
AERO-GUARD / AERO-GUARD-OX scope of delivery
- Intake pipe (compatible connecting hoses must be ordered separately; see "Options")
- Water barrel, 60 l (for AERO-GUARD DUO – 2 × water barrel, 60 l)
- Filter cartridge; filling: 8.3 kg special carbon dioxide absorber
Downloads for AERO-GUARD
BAUER Accessory Systems – The ideal enhancement to your compressor