Medical Air - Airgas.com

Medical Gases
Medical Air
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Medical Air U.S.P.

Cylinder Color: Yellow

Air-This nonflammable, colorless, odorless gas consists of a mixture of various elements. For most practical purposes, air is considered to be composed of 79% nitrogen and 21% oxygen by volume.

Major Hazards: High Pressure

Exposure Limit: None

Fire Potential: Supports Combustion

Odor: None

Mol. Wt.: 28.975 (average)

Sp. Gr. (Air = 1) 70° F (21° C): 1

Critical Temperature: -221.2° F (-140.7° C)

Critical Pressure: 546.8 psia (38.4 kg/cm2abs)

Specific Volume: 13.3 ft3/lb at 70° F (0.813 m3/kg at 15° C)

CAS Registry No.: 25635-88-5

D.O.T. Description: Air, Compressed, 2.2, UN1002

Medical Applications: For respiratory therapy, for humidity treatments using nebulizers and as a source of pressure to power pneumatic medical devices

Valve ConnectionCylinder SizeContentsPressure PSIG @70°FNominal Gross Wt.
CGA 346
(Threaded)
300 311ft38.62m32,640psig 185.7kg/cm2166lb 75.5kg
CGA 346
(Threaded)
250259ft37.19m32,490psig 175.1kg/cm2166lb 75.5kg
CGA 346
(Threaded)
200233ft36.46m32,200psig 185.6kg/cm2166lb 75.5kg
CGA 346
(Threaded)
190208ft35.76m32,200psig 154.7kg/cm2150lb 68.2kg
CGA 950
(Pin-Indexed)
ME23.5ft30.650m32,015psig 140.6kg/cm216.3lb 7.39kg
CGA 950
(Pin-Indexed)
EA]22.6ft30.63m32,015psig 140.6kg/cm214.0lb 6.33kg
CGA 950
(Pin-Indexed)
MD14.4ft3.400m32,015psig 140.6kg/cm210.6lb 4.8kg
CGA 950
(Pin-Indexed)
DA]13.8ft32,015psig 8.0lb

Aluminum cylinder


Purity Specifications
U.S.P. 19.5–23.5% OCO<10 ppm
Odor None detected
NO+NO<2.5 ppm
Water and Oil None detected
S02 <5 ppm
C02 <500 ppm