DISCOVERY MEETS DEPENDABILITY
Get EPA protocol gases for automotive repair and smog inspections, including carbon monoxide, propane, nitric oxide, and nitrogen.
We offer precise real-time monitoring, mobile alerts, and predictive usage — reduce runouts so you have fewer costly, last-minute deliveries, even during your busiest repair and inspection periods.
Get your first delivery within 48 hours in California or Arizona.
We are proud to offer standard next day delivery, same-day delivery, and available 24/7 monitoring.
From the first walkthrough to delivery and beyond, our team is always ready to serve.
Our gas experts walk through your setup to build systems that prioritize safety and efficiency.
No matter the volume or type of gas, our state-of-the-art labs and highly-skilled production teams deliver.
Our drivers consistently perform in high-pressure environments and champion things such as customer care, road, and onsite safety.
Stop paying rent on cylinders that aren’t in your possession. And enjoy sustainable service with less deliveries thanks to telemetry’s mobile alerts, real-time measurements, and usage trends.
The days of chasing invoices and updating billing info are gone — access your account and re-order with confidence (and ease).
With WestAir cylinder tracking only pay for the cylinders that you are using. Never overpay for storing empty unused cylinders ever again.
Learn more about the different gases commonly used in the repair services industry.
CO
Used in calibration gas mixtures for smog check equipment and emissions analyzers.
CO₂
Used in calibration gas blends for emissions analyzer verification.
NO
Used in calibration mixtures for NOx emissions analyzers.
C₃H₈
Used as a span gas for hydrocarbon (HC) calibration in emissions testing equipment.
CH₄
Sometimes used in calibration gas mixtures to represent hydrocarbons in emissions testing. Methane is a component of natural gas and can be present in vehicle emissions.
O₂
Used in calibration gas mixtures to verify the accuracy of oxygen sensors in emissions analyzers. Oxygen levels are important for assessing combustion efficiency and emissions control.
N₂
Used as a zero gas and balance gas in EPA protocol calibration mixtures.
Learn more about the repair services gases and services we offer.
Smog inspection facilities use calibration gases, often a mixture of nitrogen and trace gases, to ensure the accuracy of emission testing equipment.
Yes. We offer real-time monitoring for most of our gas applications to make sure you never run out. Our solution provides you (and us) with accurate updates on your levels so we can optimize your gas delivery, detect leaks and other issues – saving you money while supporting our sustainability commitments.
Yes. We make true same-day deliveries with no qualifications. If you call at 4:55 pm and you need a same-day delivery, we will deliver that day.
We offer cost-effective bulk gas solutions including bulk calibration gases often used for smog inspections. Your products will be safely delivered by our modern fleet of fuel-efficient trucks, equipped for cylinder and bulk gas delivery.
Yes. WestAir barcodes each cylinder and will scan each cylinder when it enters and leaves your location. This eliminates the need for you to perform time-consuming and error-prone inventory tracking. This process also guarantees accurate monthly billing statements.
Yes. Our dedicated account management and 24/7 emergency service is there to make a bad day better.
Supporting welding, cutting, heating, cooling, and manufacturing processes for high-quality automotive production.
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Fill out the form and one of WestAir’s repair services gas experts will reach out to you about your specific business needs.
