In an AC (air conditioner), “gas” refers to the refrigerant (sometimes called coolant) that circulates through the system, absorbing heat from inside and releasing it outside. Over time, due to leaks or improper sealing, the gas pressure may drop. When that happens, the AC’s cooling efficiency drops (it may not cool properly), the compressor works harder, electricity bills go up, a... https://www.noidaallacrepair.com/best-ac-gas-filling-service-in-noida/