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PureAire Monitoring Systems Oxygen Monitor 888.788.8050

Welcome to PureAire Monitoring Systems

Our mission at PureAire is simple. Keep people safe. Innovative oxygen sensing and gas monitoring since 1997.

PureAire Monitoring Systems Commemorates Over 25 Years in Business

PureAire Monitoring Systems
Commemorates Over 25 Years in Business


A Few Words from

Our Customers

The Cryospa

The Cryo Spa

We have been using PureAire O2 Monitors at The Cryo Spa in Fort Worth for over 3 years now and they have always worked perfectly. I would highly recommend PureAire for any oxygen monitoring needs! …
airgas nitrogen oxygen monitor e1515428296995


We already have several of your O2 sensors for a few years at the site and they work great. Thanks.
smitten ice cream2

Smitten Ice cream

We buy a lot of oxygen monitors and PureAire’s are by far the best! They have a much longer warranty than other brands and the product is a lot higher quality. Their customer service is …
university nitrogen oxygen monitor

Cornell University

We use ~100 of them at Weill Cornell. We have used them for >5 years and have had no issues. They still have to be bump tested and calibrated annually, but having a sensor that …
gulfstream aerospace

Gulfstream Aerospace 

The O2 monitors are working well and doing a great job! Alarm relays are configured with the exhaust fan and is triggered a couple of times a day if we have LN2 bottles in the …
DOE Department of Energy

Department of Energy

Purchased the PureAire O2 monitoring system and once it arrived had it installed, very simple and neat. After a 4 minute start up sequence it automatically started to operate. We found that this unit is …
Johnson controls

Johnson Controls

I use these devices at Yale University in animal rooms and Labs, they work great, very robust! Extremely competitive, I am very satisfied with the ease of use and lead time of this product!
Northrop grumman

Northrop Grumman

You make an excellent product, and your service is outstanding. I am happy to speak to someone interested in the Oxygen Monitor if they have any more questions about our experience.


Great customer support with timely response and follow up. Product arrived on time and as sold. Simple to install and connect.
Yale University


My co-worker started using these devices down at Yale University, PureAire O2 depletion monitors. After years of dealing with expensive long lead MSA Tox Alert monitors it was a breath of fresh air to be …
pure aire mockup


We tested the O2 monitor and it was very nice compared to the one another department in our company has which uses disposable sensors. The calibration free feature really helps us not only reducing the …

Companies We Keep Safe

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Latest From

Our News Room

3D Metal Printing: Oxygen Analyzers Are Essential

3D Metal Printing: Oxygen Anal...

Metal 3D printing, also known as additive manufacturing, provides for the creation of complex metal parts by layering metal powders and, depending on the application, selectively sintering, fusing, …
Introducing PureAire Monitoring Systems latest product – the PureAire CloudConnect module

Introducing PureAire Monitorin...

PureAire Monitoring Systems is excited to announce the launch of our latest offering—the PureAire CloudConnect module, provides for internet connectivity (with Cloud storage capabilities) for our full line …
Biorepository Safety

Biorepository Safety

What is a Biorepository? A biorepository, or "biobank",  is a specialized facility designed to store, archive, and distribute biological samples for research or clinical purposes. Biorepositories house biological samples, …
Sterilizing Medical Devices Using Ethylene Oxide

Sterilizing Medical Devices Us...

According to the Centers for Disease Control and Prevention, 48.3 million procedures were performed at hospitals and ambulatory surgery centers in the United States in 2010. Healthcare providers …
PureAire Monitoring Systems Commemorates Over 25 Years in Business

PureAire Monitoring Systems Co...

PureAire Monitoring Systems is proud to note the completion of our 26thyear in business. Our journey began on January 14, 1997, with three employees working out of a …
Liquid Nitrogen Dosing – Supporting Non-Carbonated Beverage Packaging, One Bottle At A Time

Liquid Nitrogen Dosing – Sup...

To create that perfect glass of wine, refreshing sip of water, or other non-carbonated drinks of choice, beverage producers often turn to liquid nitrogen (LN2). Liquid nitrogen fills …
PureAire Introduces New Parts-Per-Billion PPB Oxygen Analyzer

PureAire Introduces New Parts-...

PureAire Monitoring Systems is excited to add its parts per billion(ppb) Oxygen Analyzer to our full line of Oxygen Deficiency Monitors, Carbon Dioxide Monitors, Toxic Gas Detectors, and LEL …
PureAire Introduces New 0-100 ppm Trace Oxygen Analyzer

PureAire Introduces New 0-100 ...

PureAire Monitoring Systems is excited to add its 0-100 parts per million(ppm) Trace Oxygen Analyzer to our full line of Oxygen Deficiency Monitors, Carbon Dioxide Monitors, and Combustible/Toxic …
PureAire Introduces New Dual Oxygen/Carbon Dioxide Monitor

PureAire Introduces New Dual O...

PureAire Monitoring Systems is excited to introduce its new Dual Oxygen/Carbon Dioxide Monitor, an important addition to our full line of Oxygen Deficiency Monitors, Carbon Dioxide Monitors, and …
Thermal Vacuum Chambers: A Must Have for Space Exploration

Thermal Vacuum Chambers: A Mus...

On October 4, 1957, the Soviet Union launched the first artificial satellite into space, thus ushering in the Space Age. Since then, over 8,000 satellites have been launched …
Monitoring Off-Gases to Guard Against Thermal Runaway Risk with Li-Ion Batteries

Monitoring Off-Gases to Guard ...

Lithium-Ion Batteries Rechargeable lithium-ion (“Li-ion”) batteries (comprised of cells in which lithium ions move from a negative electrode through an electrolyte to a positive electrode during discharge—and the other …
Toxic and Combustible Gases – Safety is Paramount

Toxic and Combustible Gases ...

On January 31, 2022, a fire at a North Carolina fertilizer manufacturing facility caused officials to urge residents living nearby to stay away from their homes due to …
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Frequently Asked Questions

Why do I need an oxygen deficiency monitor?

What gases can be detected with an oxygen monitor?

What is a 10+year sensor? How does it compare to other types of sensors?

How often do I need to replace sensors?

How often do I need to calibrate O2 sensors? What maintenance is recommended?

Do I need to purchase calibration gas?

Why do some O2 sensors drift or read inaccurately?

How many oxygen monitors do I need?

Where should I mount an oxygen monitor?

How to calculate response time when using sample tubing?