Oxygen Deficiency Monitors
Ensuring a safer working environment
When oxygen levels drop into the danger zone, having an oxygen deficiency monitor will save lives. Purity Gas offers the highest quality, highest performing line of oxygen deficiency monitors on the market — PureAire.
How does an oxygen deficiency monitor work?
An oxygen deficiency monitor is a device that continuously measures the amount of oxygen in the air, displays it in real-time and sounds the alarm when oxygen levels drop below a certain threshold. It’s a must-have in workspaces where low oxygen levels pose a risk to the health and safety of workers.
Why install an Oxygen Deficiency Monitor
Improve safety
Alerts when oxygen levels drop, allowing for immediate response to avoid respiratory hazards.
Bring peace of mind
Helps employees feel secure in the workplace, while reducing the risk of illnesses or accidents.
Achieve compliance
Ensures companies that use nitrogen, argon, helium and C02 meet regulatory agency requirements.
Track data
Allows users to monitor oxygen level trends and changes in levels over time through data logging capabilities.
The PureAire Difference
No maintenance
Most monitor manufacturers use consumable electro-chemical sensors, which typically require quarterly calibration by a skilled technician and complete replacement annually. Alternatively, PureAire uses zirconium sensors, which require zero maintenance, calibration, adjustment or testing for the monitor’s 10+ year life span.
Ready to use
All PureAire oxygen monitors are configured for use, right out of the box. Simply supply power, turn on the unit, and within four minutes the device will begin sampling oxygen levels which can be read in real-time on the digital display. All monitors are configured for connection to distributive control systems (DCS) and programmable logic controllers (PLC).
Built to last
PureAire oxygen deficiency monitors and analyzers are designed, built and tested in the USA and come with a 3-year warranty. They can be operated remotely by as much as 1,000 meters from the centralized control systems, offering ultimate ease of use and their zirconium sensor operates flawlessly in 55°C to -40°C temperatures.
All Monitors Feature
- 10+ years no calibration sensor
- 3 year warranty
- No maintenance required
- Plug & play set up out of the box
- Built in CPU
- Built in 90dB audible alarm
- Dual level, user selectable alarm relay
- Digital display, 4-20 mA analog output
- Connects to SCADA and PLC controls
- Equipped with 110/220v plug-in power supply
- UL, C UL and CE Approvals
Oxygen Monitors
Oxygen Deficiency Monitor with 10+ Year Sensor
Item #: 99016
PureAire's Oxygen Deficiency Monitor is perfect for facilities that use inert gases, including, but not limited to, nitrogen, helium, and argon. This monitor is best suited for confined spaces, cryogenic locations, laboratories, and freezers. The monitor will remain accurate at temperatures as low as -40C. PureAire's durable, non-depleting,
zirconium oxide sensor last 10+ years in a normal environment without needing to be replaced.
- Pharmaceutical
- Laboratories
- Hospitals
- Cryogenic Locations
- Food Processing
- UL, C UL and CE approvals
- Long-life 10+ year average sensor life
- Two, user-adjustable, alarm setpoints available or
alarm defaults are set for 19.5% and 18.0% - Built-in audible alarm 90 db
- 3 year warranty
- Digital display
- 4-20mA analog output (Active)
- Wall mounting brackets
- 24V Power Supply Included
O2 Monitor with 10+ Year Remote Sensor
Item #: 99028
The Oxygen Deficiency Monitor with Remote Sensor is perfect for facilities that use inert gases, including, but not limited to, nitrogen, helium, and argon. The remote sensor allows for continuous monitoring up to 30 feet from the monitor. This monitor is best suited for confined spaces or spaces that are not easily accessible. The monitor will remain accurate at temperatures as low as -40C. PureAire’s durable, non-depleting, zirconium oxide sensor will last up to 10+ years in a normal environment without needing to be replaced.
- Hospitals
- Confined Spaces
- Biomedical
- Freezers
- Cryogenic Storage
- 3D Printers
- UL, C UL and CE approvals
- Long-life 10+ year average sensor life
- Two, user-adjustable, alarm setpoints available or
alarm defaults are set for 19.5% and 18.0% - Built-in audible alarm 90 db
- 3 year warranty
- Digital display
- 4-20mA analog output (Active)
- Wall mounting brackets
- 24V DC Power Supply Included
Sample Draw Oxygen Detector with 10+ Year Sensor
Item #: 99029
The Sample Draw Oxygen Deficiency Monitor is perfect for storage areas, confined spaces, other locations where remote oxygen monitoring is required. The built-in pump samples oxygen levels from up to 100 feet away and is suitable for facilities that use inert gases including, but not limited to, nitrogen, helium, and argon. The monitor is ideal for environments such as MRI facilities, cryogenic spas, hospitals, freezers, and laboratories. The monitor will remain accurate at temperatures as low as -40C. PureAire's durable, non-depleting, zirconium oxide sensor will last 10+ years in a normal environment, without needing to be replaced.
- MRI Rooms
- Hospitals
- Pharmaceutical Manufacturers
- Laboratories
- Long-life 10+ year average sensor life
- Two, user-adjustable, alarm setpoints available or alarm
defaults are set for 19.5% and 18.0% - Built-in audible alarm 90 db
- 3 Year warranty
- Digital display
- 4-20mA analog output (Active)
- Wall mounting brackets
- Built-in flow sample pump
- UL, C UL and CE approvals
- 24V DC Power Supply Included
Dual O2/CO2 Monitor, 0-25% and 0-10,000ppm
Item #: 99039
PureAire Monitoring Systems Dual Oxygen / Carbon Dioxide Monitor is designed for continuous monitoring of oxygen and carbon dioxide in confined spaces. The monitor is ideal for facilities that use inert gases including, but not limited to, nitrogen, helium, carbon dioxide, and argon. The O2/CO2 monitor is perfect for environments such as breweries, food processing plants, laboratories, hospitals, and universities. The monitor will remain accurate at temperatures as low as -40C. PureAire's durable, non-depleting, zirconium oxide sensor cell and non-dispersive infrared sensor (NDIR) cell, will last up to 10+ years in a normal environment, without needing to be replaced.
- Pharmaceutical
- Hospitals
- Universities
- Breweries
- Food Processing
- Laboratories
- No maintenance zirconium O2 cell and long life CO2 sensor
- No calibration required for oxygen
- Self-calibrating CO2 sensor
- Local backlit concentration display
- Built-in audible horn
- Built-in visual LED alarm indicators
- Alarm level 1 for CO2 and Alarm level 2 for O2
- No drift due to environmental or temperature changes
- 3-year warranty
- 24V DC Power Supply Included
Trace Oxygen Analyzer, KF25 0-1000ppm
Item #: 99097
PureAire's KF25 0-1000ppm Trace Oxygen Analyzer is ideal for facilities requiring continuous monitoring of 3D printers, glove boxes, nitrogen gas lines, vacuum chambers, as well as any locations where there is little to no oxygen present. The unit's sensor mounts directly into the vacuum chamber with the use of a KF type vacuum fitting. The analyzer is well suited for semiconductor tools, OLED manufacturers, 3D printing and, for any industry applications where inert gases including, but not limited to, nitrogen, helium, and argon are used in a vacuum.
PureAire's stable, long-life zirconium oxide sensor will last many years in maintained environments without needing to be replaced.
- Semiconductor Tools
- OLED Manufacturers
- 3D Printers
- Direct Metal Laser Sintering and DMP
Printers - Inert Vacuum Environments
- KF25 Flange Connector
- Low Maintenance Zirconium Cell
- 0-1000ppm Oxygen Sensor
- Operates in a Vacuum, 20 Torr
- 3 Year Warranty
- 2 Alarm Relays
- 24V DC Power Supply Included
- No Drift Due to Environmental or Temperature Changes
- UL, CE Approved
Dual O2/CO2 Monitor, 0-25% and 0-50,000 ppm
Item #: 99143
PureAire Monitoring Systems Dual Oxygen / Carbon Dioxide Monitor is designed for continuous monitoring of oxygen and carbon dioxide in confined spaces. The monitor is ideal for facilities that use inert gases including, but not limited to, nitrogen, helium, carbon dioxide, and argon. The dual O2/CO2 monitor is suitable for environments such as cryogenic facilities, breweries, food processing plants, laboratories, hospitals, and
universities. The monitor will remain accurate at temperatures as low as -40C. PureAire's durable, non-depleting, zirconium oxide sensor cell and non-dispersive infrared sensor (NDIR) cell, will last 10+years in a normal environment, without needing to be replaced.
- Pharmaceutical
- Hospitals
- Aerospace
- Cryogenic Facilities
- Universities
- Food Processing
- Breweries and Bars
- No scheduled maintenance zirconium O2 cell and
long life CO2 sensor - No calibration required for oxygen
- Self-calibrating CO2 sensor
- Local backlit concentration display
- Built-in audible horn
- Built-in visual LED alarm indicators
- Alarm level 1 for CO2 and Alarm level 2 for O2
- No drift due to environmental or temperature changes
- 3-year warranty
- 24V DC Power Supply Included
KF25 0-25% Oxygen Deficiency Monitor for Vacuum and Gas Lines
Item #: 99035
PureAire's KF25 0-25% Oxygen Deficiency Monitor is ideal for facilities requiring continuous monitoring of gas lines, glove boxes, nitrogen gas compressors, and vacuum chambers, as well as any locations where low oxygen levels need to be supervised. The unit's oxygen sensor mounts directly into the vacuum chamber with the use of a KF type vacuum fitting. The monitor is also well suited for semiconductor tools, OLED manufacturers and, for any industry applications where inert gases including, but not limited to, nitrogen, and argon are used in a vacuum. PureAire's stable, long-life zirconium oxide sensor will last 10+ years in maintained environments without needing to be replaced.
- Semiconductor
- OLED Manufacturers
- Nitrogen Compressors
- 3D Plastic & Metal Printing
- Partial Vacuum Environments
- KF25 Flange Connector
- Two, user-adjustable, alarm setpoints available or alarm defaults are set for 19.5% and 18.0%
- 10+ year low maintenance zirconium cell
- Operates in a vacuum
- 3-Year Warranty
- 2 Alarm Relays
- 24V DC Power Supply Included
- No Drift Due to Environmental or Temperature Changes
- Local Digital Display
- 4-20mA Output (Active)
- UL, C CE Approval
IP67 Water Resistant Sample Draw Oxygen Monitor
Item #: 99118
The IP67 Water Resistant Sample Draw Oxygen Monitor is a self-contained oxygen deficiency system that is suitable for remote sampling of confined spaces that require daily wash-downs. The monitor can sample from up to 100 feet away and is ideal for facilities that use inert gases including, but not limited to, nitrogen, helium, and argon. It is perfect for environments such as breweries, bottling plants, food industries, flash freezing, and
laboratories. The monitor will remain accurate at temperatures as low as -40C. PureAire’s durable, non-depleting, zirconium oxide sensor will last up to 10+ years in a normal environment, without needing to be replaced.
- Laboratories
- Food Processing
- Pharmaceutical Manufacturing
- Breweries and Bottling Plants
- Flash Freezing Tunnels
- Freezers
- Long-life 10+ year average sensor life
- Two, user adjustable, alarm setpoints available or alarm defaults are set to 19.5%and 18.0%
- 3 year warranty
- Digital display
- 4-20mA analog output (Active)
- Wall mounting brackets
- Built-in sample pump
- UL, CE approvals
Explosion Proof Oxygen Monitor with 10+ Year Sensor
Item #: 99020 Class I Enclosure
Item #: 99045 Class II Enclosure
The Air Check Explosion Proof Oxygen Deficiency Monitor is perfect for facilities that use inert gases including, but not limited to, nitrogen, helium, and argon. The enclosure is specifically designed to prevent ignition of an explosion. The monitor is best suited for environments such as corn and grain processing facilities, powder coating plants, and the oil and gas industry where combustible dust, and ignitable fibers are present. The monitor will remain accurate at temperatures as low as -40C. PureAire’s durable, non-depleting, zirconium oxide sensor will last up to 10+ years in a normal environment without needing to be replaced.
- Aerospace
- Additive Manufacturing/3D Printing
- Biomedical
- Food Processing
- Corn and Grain Processing
- Oil and Gas
- 99020-Class I, Div 1 & 2, Groups B,C,D, Zones 1 & 2, Groups IIB +H2, IIA and Class 2, Div 2 E,F,G
- 99045-Class II, Div 1 & 2, Groups E, F, G
- Long-life 10+ year average sensor life
- Two, user-adjustable, alarm setpoints available or alarm defaults are set for 19.5% and 18.0%
- UL, C UL and CE approval on Enclosure
- 3 year warranty
- Digital display
- 4-20mA analog output (Active)
- Wall mounting brackets
- Built-in flow sample pump
Oxygen Deficiency Monitor for Glove Box with 10+ Year Sensor
Item #: 99021
PureAire's Oxygen Deficiency Monitor is a compact unit that is ideal for the continuous monitoring of oxygen levels in glove boxes, fume hoods, and any sealed chamber areas where low to no oxygen levels need to be measured and controlled. This monitor is perfect for facilities that use inert gases, including, but not limited to, nitrogen, helium, and argon. It is best suited for confined spaces or vacuum environments in locations such as laboratories, hospitals, pharmaceutical manufacturers, semiconductors, and universities. The monitor will remain accurate at temperatures as low as -40C. PureAire's durable, non-depleting, zirconium oxide sensor will last 10+ years in a normal environment without needing to be replaced.
- Pharmaceutical Manufacturers
- Laboratories
- Hospitals
- Universities
- Semiconductor
- Designed for mounting on Glove Boxes
- Long-life 10+ year sensor
- No Calibration
- Two Alarm Relays
- 3-year warranty
- No drift due to environmental or temperature changes
- Digital display
- 4-20mA analog output (Active)
- 24V DC power supply included
- UL, C UL and CE approvals
IP67 Water Resistant Sample Draw Dual O2/CO2 Monitor with 10+ Year Sensor
Item #: 99127
The Water-Resistant Sample Draw Dual O2 / CO2 Monitor is a self-contained system that is designed for continuous monitoring of inert gases in confined spaces that require daily wash-downs. The monitor can sample O2 / CO2 levels from up to 100 feet away and is ideal for facilities that use inert gases including, but not limited to, nitrogen, helium, and argon. Its IP67 water resistant enclosure keeps the monitor dry during wash-downs. The O2/CO2 monitor is perfect for environments such as breweries, bottling plants, food processing facilities, and
laboratories. The monitor will remain accurate at temperatures as low as -40C. PureAire's durable, non-depleting, zirconium oxide sensor cells, and NDIR cells, will last up to 10+years in a normal environment, without needing to be replaced.
- Laboratories
- Breweries and Bottling Plants
- Biomedical
- Food Processing
- Flash Freezing Tunnels
- Freezers
- No scheduled maintenance required for oxygen sensor
- Long-life, self-calibrating CO2 sensor
- Local backlit concentration display
- Built-in audible horn
- Built-in visual LED alarm indicators
- Alarm level 1 for CO2, and Alarm Level 2 for O2
- No drift due to environmental or temperature changes
- 3-year warranty
- Built-in Flow Sample Pump
Oxygen Deficiency Monitor with 10+ Year Sensor 0-30%
Item #: 99040
PureAire's Oxygen Deficiency Monitor is perfect for facilities that use inert gases, including, but not limited to, nitrogen, helium, and argon. The monitor is well suited for confined spaces, cryogenic locations, and freezers. The monitor will remain accurate at temperatures as low as -40C. PureAire's durable, non-depleting, zirconium oxide sensor will last 10+ years in a normal environment without needing to be replaced.
- Pharmaceutical
- Manufacturers
- Laboratories
- Hospitals
- Cryogenic locations
- Food Processing
- Long-life 10+ year average sensor life
- Two, user adjustable, alarm setpoints available or alarm defaults are set for 19.5% and 18.0%
- Built-in audible alarm 90 db
- 3 year warranty
- Digital display
- 4-20mA analog output (Active)
- Wall mounting brackets
- 24V DC Power Supply Included
Water-Resistant Sample Draw Dual Oxygen (0-25%)/Carbon Dioxide (0-50,000 ppm) Monitor
Item #: 99188
The Water-Resistant Sample Draw Dual O2/CO2 Monitor is a self-contained system that is designed for continuous monitoring of inert gases in confined spaces. The monitor can sample O2/CO2 levels from up to 100 feet away and is ideal for facilities that use inert gases including, but not limited to, nitrogen, helium, and argon. The NEMA 4X/IP66 dust and water-tight enclosure protects the monitor against dust, water, and damage from external ice formation. The O2/CO2 monitor is perfect for environments such as breweries, bottling plants, food processing facilities, and laboratories. The monitor will remain accurate at temperatures as low as -40C. PureAire's durable, non-depleting, zirconium oxide sensor cells, and NDIR cells, will last up to 10+years in a normal environment, without needing to be replaced.
- Breweries
- Bottling plants
- Food Processing Facilities
- Laboratories
- Flash Freezing Tunnels
- No calibration is required for oxygen
- Self-calibrating CO2 sensor
- Local backlit concentration display
- Two 4-20mA output signals with dedicated circuits
- Two alarm level set-points for both O2 and CO2
- Two relays for both O2 and CO2
- No drift due to environmental or temperature changes
- 3-year warranty
- No scheduled maintenance zirconium oxide O2 cell and long-life CO2 sensor
- Built-in flow sample pump for remote sampling up to 100 feet
- NEMA 4X/IP66 Enclosure
- Includes 24V 48W Power Supply
Trace Oxygen Analyzer, KF25 0-100 ppm
Item #: 99197
PureAire's KF25 0-100 ppm Trace Oxygen Analyzer is ideal for facilities requiring continuous monitoring of 3D printers, glove boxes, nitrogen gas lines, vacuum chambers, as well as any locations where there is little to no oxygen present. The unit's sensor mounts directly into the vacuum chamber with the use of a KF type vacuum fitting. The analyzer is well suited for semiconductor tools, OLED manufacturers, 3D printing and, for any industry applications where inert gases including, but not limited to, nitrogen, helium, and argon are used in a vacuum.
PureAire's stable, long-life zirconium oxide sensor will last many years in maintained environments without needing to be replaced.
- Semiconductor Tools
- OLED Manufacturers
- 3D Printing
- Direct Metal Laser Sintering and DMP Printers
- Inert Vacuum Environments
- Natural Gas & Biogas
- 0-100 ppm Oxygen Sensor
- Accuracy ± 5% of calibrated range
- KF25 Flange Connector
- Operates in a vacuum, 20 Torr
- Low Maintenance Zirconium Cell
- 3-year warranty
- 2 Alarm relays
- No drift due to environmental or temperature changes
- 24V DC Power supply included
Trace Oxygen Analyzer, KF25 0-10 ppm
Item #: 99201
PureAire's KF25 0-10 ppm Trace Oxygen Analyzer is ideal for facilities requiring continuous monitoring of semiconductor tools, glove boxes, nitrogen gas lines, vacuum chambers, as well as any locations where there is little to no oxygen present. The unit's sensor mounts directly into the vacuum chamber with the use of a KF type vacuum fitting. The analyzer is well suited for semiconductor tools, OLED manufacturers, 3D printing and, for any industry applications where inert gases including, but not limited to, nitrogen, helium, and argon are used in a vacuum. PureAire's stable, long-life zirconium oxide sensor will last many years in maintained environments without needing to be replaced.
- Semiconductor Tools
- OLED Manufacturers
- 3D Printers
- Direct Metal Laser Sintering and DMP Printers
- Inert Vacuum Environments
- Natural Gas & Biogas
- 0.01-10.00 PPM Oxygen Sensor
- Accuracy +-200 PPB of Calibrated Range
- KF25 Flange Connector for easy Plug-and-Play connectivity
- Long-Lasting Low Temperature Zirconium Oxide Sensor
- Operates in a Vacuum, 20 Torr
- Leak rate <1E-9 (or 1x10^-9)millibars (mb)/sec
- 3 Year Warranty
- 2 Alarm Relays
- 24V DC Power Supply Included
- No Drift Due to Environmental or Temperature Changes
Oxygen Monitor Accessories
Remote LED Horn & Strobe Alarm
Item #: 42002
The horn and strobe combines the features of a mini sounder with a fully integrated xenon strobe circuit. Operating voltage ranges from 18-28VDC with an average of only 68 mA current consumption. The horn has two switchable tone patterns: “Sweeping” and “Continuous”. The horn has a range of 82-100 dBa @ 10' (92-110 dBa @ 1m), dependent upon tone selected. Volume control is set by dip switch, which allows for 20 dBa of adjustment. The strobe features a bright xenon strobe that produces 0.7 Joules of flash energy with a flash frequency of 60 flashes per minute. The beacon will operate jointly with any tone selected. The PureAire horn and strobe is PLC compatible. It is ideal for wall or panel mount applications where low voltage is required.
- Pharmaceutical Manufacturers
- Laboratories
- Hospitals
- Cryogenic Locations
- Food Processing
- Universities
- Available in 18–28VDC
- Fully integrated xenon strobe circuit
- Four dome colors: Amber, Blue, Clear and Red
- Heavy duty ABS plastic body
- 82–100 dBa @ 10' (92–110 dBa @ 1m)
- IP54 enclosure
- CE Compliant, RoHS Compliant
Remote Digital Display and Alarm
Item #: 99091
PureAire's Remote Digital Display and Alarm is designed for use with our complete line of oxygen and carbon dioxide monitors. It is ideal for use in locations where oxygen levels must be at safe levels before employees enter the area. The remote display provides accurate readings from up to 250 feet from the monitor. It is well suited for use in environments such as freezers, hospitals, laboratories, agricultural grow rooms, the oil and gas industry, and any locations where oxygen or toxic gas levels must be monitored. The unit comes with 2 user-selectable alarm setpoints, large LED screen, and a built-in 90dB horn to alert personnel to unsafe conditions.
- Food and Beverage
- Research and Development
- Healthcare
- Laboratory
- Pharmaceutical
- Oil and Gas Refineries
- Bright red 1 inch LED digital display showing oxygen, or carbon dioxide
- Built-in 90dB audible alarm and fault status
- Two-tone horn distinguishes between alarm 1 and alarm 2
- User adjustable dual-level alarm setpoints
- 3-year warranty
8 Channel Programmable Controller
Item #: 99196
The PureAire 8 channel controller is designed to provide simple analog control or full featured digital control of toxic, LEL and oxygen deficiency monitors. The controller remotely powers and operates up to 8 monitors up to 100 feet from the controller. Capable of accepting any two or three wire gas detector, it features two user-adjustable common alarm relays which will, in the event of a gas leak, or a fault from one of the monitors, alert personnel. The multichannel controller incorporates various modes of operation for taking channels off line individually for performing calibration or sensor maintenance. Each channel can be individually designated with PPM, PPB or %. The LCD screen displays the readings from all 8 channels simultaneously, and the trends from each channel may be viewed in graph form over a period of time.
- Cleanrooms
- Semiconductor
- Wastewater Treatment
- IVF
- Cryogenic Laboratories
- Food Flash Freezing
- Designed to control and power up to 8 monitors
- Connects any 2 or 3 wire gas monitors
- Digital and graphic LCD gas concentration display
- RS-485/Modbus RTU output
- Built-in 24 VDC power supply
- NEMA 4X IP66 Water-Resistant Enclosure
Product Inquiry
Oxygen Deficiency Monitors Form
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