Chemical Products & Windshield Washer Fluid

Air1 Diesel Exhaust Fluid (DEF)

Consumable Emission Control Liquid for Diesel Engines


Air1 brand Diesel Exhaust Fluid (DEF) a high-quality API certified DEF product, meeting ISO 22241, comprised of 32.5% technically pure urea and 67.5% deionzed water. Air1 DEF is a low hazard product and has a similar appearance to water.

Air1 DEF is sprayed into the exhaust stream via an injection system and is then converted into ammonia on a catalyst. The ammonia breaks down the dangerous NOx emissions produced by diesel engines into nitrogen and water. This system is called Selective Catalytic Reduction (SCR) and can be found on 2010 and later model year trucks, diesel pick-ups, and SUVs.

Features & Benefits

  • API certified DEF product, meets ISO 22241
  • Formulated with technically pure urea and deionzed
  • Compatible with other DEF fluids in the market with
    similar formulation
For more information, consult the product data sheet.