Mobile 100 l/min unit for breathing air applications up to 330 bar

The world’s best-selling portable compressor: lightweight, robust, and perfectly suited for divers, fire departments, and sport shooters. High performance with minimal space requirements.

Certified Breathing Air Quality

The BAUER JUNIOR II delivers independently tested and accredited breathing air quality that not only meets but exceeds international standards such as EN 12021:2014, CGA/ANSI Grade E, and other relevant norms – ensuring maximum safety for every application.

Intelligent Maintenance Monitoring

The B-TIMER records operating hours and maintenance intervals, monitors filter cartridge saturation and precisely calculates the optimal replacement time. For maximum safety, outstanding cost efficiency and consistently superior breathing air quality.

Long Service Intervals

Thanks to durable components tested to BAUER’s extreme safety standards and a well-engineered design, the BAUER JUNIOR II offers long service intervals that reduce maintenance effort, minimize downtime, and sustainably lower operating costs.

Proven Worldwide

With more than 100,000 installed systems and decades of operation in over 100 countries, the BAUER JUNIOR II represents reliability, quality, and trust worldwide and is valued by professional users in demanding applications.

Multi-Level Safety Concept

Standard safety valves at every compression stage reliably protect both system and operator. This multi-level safety concept ensures permanently safe, controlled, and standards-compliant operation.

• Charging rate: 100 ltr/min
• Maximum operating pressure: 330 Bar
• Drive: Petrol engine - 4.2 kW
• Dimensions (L x W x H): ca. 79 × 37 × 44 cm
• Net weight: ca. 45 kg
• Filter system: P-21

# if you want us to ship a compressor outside the Netherlands then let us know the address you'd like us to ship to, we will then inform you the actual shipping costs.

Details & Features

Reliability that sets global standards: with more than 100,000 units sold, the JUNIOR II is a true classic. Optimized cooling and improved belt protection significantly extend the filter service life. Its modern design, lightweight construction, and ease of operation make it the ideal companion for mobile applications such as diving, breathing protection, paintball, or shooting sports.

Compressor block

BAUER compressor blocks are based on decades of experience and development. An efficient air cooling system with large coolers and finned cylinders ensures optimal cooling. Robust industrial roller bearings, pressure lubrication, and fine oil filters minimize wear. Dynamically balanced drive units ensure smooth operation and long maintenance intervals.

P 21 filter system

The integrated P 21 filter system with oil and water separator as well as pressure-retaining non-return valve ensures reliable breathing air in accordance with DIN EN 12021¹ when using original BAUER filter cartridges. A type-tested, sealed final pressure safety valve ensures maximum operational safety. The processable air volume is 140 m³.

¹ Applies when properly maintained and installed, and if CO₂ limits in accordance with the standard are not exceeded.

B-TIMER filter cartridge monitoring

The unique B-TIMER minicomputer displays the operating hours and the current filter cartridge saturation in real time. A prominent blinking signal indicates when a cartridge change is due – including the corresponding order number. This ensures the filter capacity can always be used optimally.

Filling device

The filling device consists of a flexible "UNIMAM" high-pressure filling hose and a filling valve with a final pressure gauge. The gauge allows easy reading of the filling pressure and is reliably protected against damage by a robust rubber coating.

Filling hose

The high-quality UNIMAM high-pressure filling hoses are made of food-grade, durable material and provide maximum flexibility during handling. Swiveling hose connections allow for quick, easy, and safe connection of the filling valve to the breathing air cylinder.

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