... of R22 1. High-efficiency, energy-saving: Refrigerant R433b have higher latent heat of evaporation than R22, ... 800-850gs, can save energy 28%-30%. And R433b can play the role of lubrication too. 2. ... -friendlly, ODP=0, GWP=3.3. Compatability: R433b has similar thermal performance to R22, has good compatability ... no mixing with oxidants; avoid naked fire. R433b air conditioner-use refrigerant for hot sale