Doesn't ozone form naturally?

I heard that ozone generated by some air purifiers is very bad for your health recently.

Is it not artificially generated like this, but does ozone not occur naturally?

213 2016-06-16 Gentleman

In nature, a small amount exists in the stratosphere of the Earth, where it absorbs the sun's ultraviolet rays, so that life on Earth is not severely damaged by ultraviolet rays.
http://100.daum.net/encyclopedia/view/b16a1265a

Gentleman 8 years ago 0

A. 2

Energy such as ultraviolet rays, X-rays, and cathode rays is also formed through the atmosphere, so it is said to be present in the atmosphere in areas rich in ultraviolet rays such as mountains, coasts, and forests, causing the air to feel refreshed.
http://100.daum.net/encyclopedia/view/153XXXXXX363...

Gentleman 8 years ago 0

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