PureAire Monitoring Systems 888.788.8050

The Industry Leader in Gas Detection

Our mission at PureAire is simple. Keep people safe.

Featured Product

Aircheck O2 Monitor

10 + Years No Calibration Sensor
Detects N2, Ar and He
Built-in Audible Alarm
3 Year Warranty
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A Few Words from

Our Customers



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

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 

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 …


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

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

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.

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 …


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! …



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 …



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 …

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Latest From

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Aluminum Extrusion: Staying Cool with Nitrogen

Aluminum Extrusion: Staying Co...

Aluminum is a highly malleable material, which is readily shaped for any number of purposes. The aluminum extrusion process is key to shaping aluminum, and it must be …
How Do Potato Chips Stay So Fresh In The Bag?

How Do Potato Chips Stay So Fr...

Chip bags have all that air in them for a valid reason — and it's not air, anyway, it's nitrogen gas. So what is this gas doing in your …
Taste the Difference with Nitrogen Packed Coffee Grounds

Taste the Difference with Nitr...

When it comes to flavor, coffee purists prefer whole beans, which retain their flavors longer than ground coffee. Yet there's no denying the convenience factor of ground coffee, …
Breathe Safely While Using N2 for Gas Chromatography

Breathe Safely While Using N2 ...

Gas chromatography is a process used to separate chemical compounds for analysis. The analytical chemistry process is used with gases that won't decompose when vaporized. Gas chromatography are used in …
Nitro Beer Tastes Better

Nitro Beer Tastes Better

If you've ever remarked on the smooth creaminess of a pint of Guinness, you've picked up on the key difference in its carbonation: Nitrogen rather than carbon dioxide. …
The Benefits of Nitrogen and Carbon Dioxide for Food Processing

The Benefits of Nitrogen and C...

A blend of gases -- carbon dioxide, oxygen, and nitrogen -- help preserve packaged food by reducing the amount of oxygen inside the sealed package. Gas flushing or …
The Overview on Inert Glove Boxes and How They Work

The Overview on Inert Glove Bo...

For businesses that work with inert gases or hazardous materials, glove boxes are essential. They allow employees to safely work with sensitive or hazardous materials without compromising either …
What is a -150C Nitrogen Freezer and Who uses them?

What is a -150C Nitrogen Freez...

  A -150 C freezer, also known as a nitrogen freezer, is used in cryo preservation. While you might think of Ted Williams being frozen on ice for a …
Nitrogen Tank or Cryogenic Dewar? Not Sure Where they are Installed? Here’s the List!

Nitrogen Tank or Cryogenic Dew...

Liquid nitrogen is used in a broad range of industries, from steelmaking and pharmaceutical to health care and ceramics. The inert gas is also used in laboratories, breweries, fine cooking, …
Oxygen Monitors now Required for Nitrogen, Argon, Helium, and CO2 use in Denver

Oxygen Monitors now Required f...

The Colorado city of Denver recently passed a new law that requires facilities that use insert gas to install oxygen deficiency monitors wherever these gases are used in …
Argon Gas Fill for Windows: How it’s Made and Benefits of Argon Insulation?

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The window industry is always searching for energy efficient improvements to windows. In recent years, inert gas fills between panes of glass have increased the performance of windows …
Storing Liquid Nitrogen in Laboratories: Which Safety Precautions and Sensors Will Protect your Employees?

Storing Liquid Nitrogen in Lab...

Liquid nitrogen is frequently used in scientific research, chemistry classes, and even culinary arts nowadays. The substance is safe when properly stored, and as long as …

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