The AIR RESPONDER™ series of breathing air trailers from Air Systems International, Inc. have been designed for mobile quick response at an economical price. These trailers provide breathing air for airline respirators, rescue air tools, or SCBA quick filling. The AIR RESPONDER™ comes in two series. The 100 series is an open frame six (6) cylinder trailer. The 200 series is and enclosed eight (8) cylinder trailer. Both trailers have a rear air control panel with respirator couplings and CGA-347 fittings to bulk fill the storage cylinders and provide for attachment of a quick fill hose for SCBA filling. An optional cascade fill panel is available for both trailer series. The front of each trailer will hold optional storage boxes, a small fill compressor, or a generator.