Low GWP and zero ozone depletion are two important concepts in environmental science and sustainability. Low GWP stands for "low global warming potential" and refers to chemicals that have a minimal impact on the Earth's atmosphere and contribute less to climate change. These chemicals are often used as alternatives to high global warming potential substances, such as hydrofluorocarbons (HFCs), which have a much higher impact on the environment and contribute significantly to climate change. By using low GWP chemicals, we can reduce our impact on the environment and help slow down climate change. Zero ozone depletion, on the other hand, refers to chemicals that do not contribute to the depletion of the Earth's ozone layer. The ozone layer is a protective layer in the Earth's atmosphere that filters out harmful UV rays from the sun. Certain chemicals, such as chlorofluorocarbons (CFCs), can break down the ozone layer, leading to increased UV radiation and harmful effects on the environment. Zero ozone depletion chemicals are used as alternatives to CFCs and other ozone-depleting substances to help protect the ozone layer and prevent its depletion.