Welcome Tech Air Customers

Tech Air is now a part of Airgas, an Air Liquide company, a leading single-source U.S. supplier of gases, welding and safety supplies. On September 30, MyTechAir.com moved to Airgas.com.
Current MyTechAir Customers
Now you can use Airgas.com to place orders, pay invoices and more. Experience the ease of everything Airgas.com has to offer, including:
- Shop the gases, welding and safety products you use every day
- Pay new and outstanding invoices, request quotes and get digital proofs of delivery (PODs) on-demand
- Access your online account, product information and order history
- View cylinder balances, Certificates of Anaylsis (COAs) and Safety Data Sheets (SDS)
Check out your account dashboard by entering the username and password we emailed to you. Log in now
Get account-specific pricing on our robust online collection of all things gases, welding and safety. Shop now
Have questions or need assistance logging in to your new account? Email eservice@airgas.com or call
866-935-3370 and select option 2. Representatives available M-F,
8am-5pm ET.
If your system requires sening up a new vendor as part of this transition, please do so for "Airgas USA, LLC."
Get new W-9