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.

Tech Air Propane Customers

Your new and outstanding propane bills are now available under Invoices in your new Airgas.com account dashboard.

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)

Log In

Check out your account dashboard by entering the username and password we emailed to you. Log in now


View and pay your bills in one convenient place—fast, easy and paper-free. Pay Invoices

Shop Products

Get account-specific pricing on our robust online collection of all things gases, welding and safety. Shop now

Contact Us

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.

Update Vendor

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