supplied air vs SCBA

[reverend]

I've got a SCBA that I got as surplus from the local fire department a few years ago that I use when shovelling out grain bins and was wondering whether or not anyone would recommend it doing double duty for painting or should one have a dedicated supplied air system instead?

[Len]

Are you wearing a tank with hoses in front of you? It could be a lot to carry around while you bend over to spray low on the side of a car and hang over the hood while spraying. The supplied air systems are usually quite light and offer good protection.

[reverend]

The weight isn't too bad but one strike against it would be the shorter duration of the tank about 45 min steady use I'd guess ( hard to say as I've only used it 5-10 mins at a time) Not to sure if that would be enough time I'm guessing closer to 2 hours for a car more for a truck?