Oxigraf Inc.
Oxygen Analyzers: Oxigraf is YOUR source for fast laser diode oxygen analyzers and OEM oxygen sensors.
http://www.oxigraf.com/

Topac Inc.
Tube purge baffles and range of purge fixtures for oxygen free welding MIG/MAG TIG and plasma tubes and pipes and flanges
http://www.topac.com/weldtools.html

Vascular Technology, Inc. (VTI)
Vascular Technology, Inc. (VTI) is a diversified biomedical firm that specializes in the development, manufacture and sale of doppler products and monitors to the critical care areas of hospitals
http://www.vti-online.com/

Alarming Oxygen Depletion Caused by Hydrogen Combustion and Fuel Cells
Hydrogen combustion implies the permanent removal from our atmosphere of directly usable oxygen, a serious environmental problem called oxygen depletion, since the combustion turns oxygen into water whose separation to restore the original oxygen is prohibitive due to cost. Abstract.
http://arxiv.org/abs/physics/0009014

Alpha Omega Instruments
oxygen analyzers, oxygen monitors, oxygen analyzer, trace oxygen analyzer, trace oxygen, percent oxygen analyzers, percent oxygen analyzer, oxygen analyser, oxygen analysers, O2 analyzers
http://www.aoi-corp.net/

Ashutosh Overseas Enterprises
Distributors/importers of oxygen and other gas analytical instruments and oxygen sensors including PPM (trace) and percentage oxygen sensors.
http://www.aoe.co.in

Teledyne Analytical Instruments
Manufacturer of gas and liquid analyzers, sensors and monitors for industrial, OEM and medical applications to analyze oxygen, carbon dioxide, combustion, hydrocarbon, hydrogen and moisture.
http://www.teledyne-ai.com/

Wessington Cryogenics
Manufacturer of liquid nitrogen, argon, oxygen & helium cryogenic storage vessels for research, industrial & medical applications
http://www.wessingtoncryogenics.co.uk/

Delphian Corporation
Manufacturer of gas monitors, monitoring systems and instrumentation for toxic and combustible gases including carbon monoxide, hydrogen sulfide, hydrogen, oxygen deficiency, methane and natural gas.
http://www.delphian.com/

GD' Tronics
GD'Tronics- We design and manufacture a series of professional monitors. Such as open-frame monitor-chassis or with iron and plastic box 14
http://www.gdtronics.com/