Why is it crucial to recover and properly dispose of used refrigerant from ACU systems?

It is crucial to recover and properly dispose of used refrigerant from ACU systems because refrigerants are harmful to the environment, contributing to ozone depletion and global warming. Many refrigerants are ozone-depleting substances, meaning they damage the Earth's protective ozone layer, which shields us from harmful ultraviolet radiation. Additionally, most refrigerants are potent greenhouse gases, trapping heat in the atmosphere and contributing to climate change. Releasing refrigerants into the atmosphere is illegal in many countries due to these environmental concerns. Proper disposal methods, such as recycling or incineration, prevent the release of these harmful substances into the environment. Furthermore, regulations mandate the recovery and proper handling of refrigerants to minimize their environmental impact. By recovering and properly disposing of used refrigerant, we can protect the ozone layer, reduce greenhouse gas emissions, and comply with environmental regulations.