Following are the measures you should do for preventing the ozone layer depletion ==>

Avoid the consumption of gases dangerous to the ozone layer, due to their content or manufacturing process. Some of the most dangerous gases are CFCs (chlorofluorocarbons), halogenated hydrocarbon, methyl bromide and nitrous oxide.

Minimize the use of cars. The best transport option is urban, bicycle, or walking. If you use a car to a destination, try to carpool with others to decrease the use of cars in order to pollute less and save.

Do not use cleaning products that are harmful to the environment and to us.Many cleaning products contain solvents and substances corrosive, but you can replace these dangerous substances with non-toxic products such as vinegar or bicarbonate.

Buy local products. In this way, you not only get fresh products but you avoid consuming food that has traveled long distances. As the more distance traveled, the more nitrous oxide is produced due to the medium used to transport that product.

Maintain air conditioners, as their malfunctions cause CFC to escape into the atmosphere.

Hope it helps you

Black lights use harmful ultraviolet light but the ultraviolet light that the ozone layer absorbs would be extremely dangerous if it came in contact with our skin. there are many different types of Us light and their classification depends on their wavelengths. uv light comes in the following form:
UVA: ozone does not absorb the UVA light.

UVB: This can be harmful to skin and thinkfully, the ozone protects us from much of it. but even a healthy, "thick " ozone layer doesn't prevent all UVB from reaching the earth.

UVC: The ozone layer prevents all UVC from reaching the earth's surface. that's good thing because UVC would be very harmful to our ecosystem.