Is bleach dangerous?

How dangerous is bleach to fabrics or leather?

A friend is recommending spraying a 50/50 solution of bleach and water
on auto carpet to get rid of mouse urine smell, etc.

she says she thinks it will only fade cotton. Is that true?

What about polyester carpet,

and the cloth or leather seat covers? Do you think the seat covers
might bet oversray, or the vinyl border of seats?

Won't bleach put holes in fabric, especially if it's not rinsed well.


Her second suggestion was to start with a 25/75 weak solution, and
move up to a 50/50 solution