Scuba Tank Covers Can I Use A Scuba Tank In My Car As A Air Tank?

Can i use a scuba tank in my car as a air tank? - scuba tank covers

Can I have a bottle of air like a scuba air tank for my air horns for my car. How many psi scuba tanks. My horns will need 90th

Are they safe or explode. I know a tank fire extinguiser is not good.

Thanks