What kind of rays are filtered by the ozone layer?

The ozone layer primarily filters out the majority of the sun's harmful ultraviolet (UV) radiation, specifically UV-B and UV-C rays. While UV-A rays can still reach the Earth's surface, the ozone layer plays a crucial role in protecting living organisms from the damaging effects of higher-energy UV radiation, which can lead to skin cancer, cataracts, and other health issues, as well as harming ecosystems.