Most of the Ozone layer can be found in the Stratosphere of our planet. The Ozone layer is important for us, as it absorbs all of the harmful light from the Sun. It is somewhere between 15km and 30km distance away from the Earth itself, and it effectively works as an important shield between us and the Sun. There's evidence to support that although the Ozone layer has taken damage, it's actually gradually healing itself over time.