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Calibration
It is designed for confined space use and detects all four of the required gases--O2
Water-soluble detergent
Some common fifth gases would be CO2 or SO2
Allegro 9504 Standard Confined Space Blower Gas Cylinders CalibrationThe Allegro 9504 confined space ventilation blower is designed to quickly ventilate confined spaces. It is made with a ABS housing, but features a steel fan for added durability. Duct can be run to either ventilate or extract air. It is an electric powered blower and can run off of generators. Duct is sold separately Click Here. Features: Free Air 1277cfm One 90 Bend 738cfm Two 90 Bends 579cfm Weighs 35 lbs. A 1 3 hp 6A 115V . 25KW motor.
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