Fresh Air Respirators, Hobby Air vs SAS, and how do you weld with one? (long) - Hot Rod Forum : Hotrodders Bulletin Board
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Old 12-06-2010, 07:32 AM
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Fresh Air Respirators, Hobby Air vs SAS, and how do you weld with one? (long)

Based on my day job (Hydraulics engineer), I was aware how hard it is to catch small particles in one pass. Despite that, I continued to weld and grind away with the better quality 3M P95 filter masks. Even though I could usually smell what I was doing, I continued.
Anyway, long story short, many things caused me to do some web searching, and afterwards, I am convinced that the only way to keep stuff out of ones lungs is a fresh air system.

One of the best threads on the subject is on this board here:
Fresh air respirators

So I decided to join. I was going to ask this in that thread, but I got a warning that I was about to post in a thread over 100 days old, did I really want to do that? My question is a little different, so here is a new thread.

Throughout my restoration, since I am doing this on the side for fun, and don't have an unlimited budget, I frequently buy tools aimed at the "hobbyist". Typically, after getting said tool, it becomes apparent in about 5 minutes why a professional would want something different, and regret that I didn't spend the money for a better product.

Now I am evaluating fresh air systems, it seems there are many that are about 1K, except for the hobbyair I, at about half that.

SAS has several in the 1K range, most if their lower end stuff seems to have 1/4 to 1/3 HP motors, but for only a little more you can get 3/4 HP 9800-18.

The listings I found for the Hobbyair don't have the motor HP.

The Hobbyair, even the higher end Hobbyair II, seem to have a corrugated air hose. Is what appears to be a smooth hose of the SAS better? I'd imagine it will defeat the purpose if dragging the hose around is a pain.

Based on the thread I linked above, and experience wearing face shields, I think I want a system with a hood. Do I need a shield also to fit under the weld helmet, or is there some way to use the hood? Is there such a thing as a welding hood?

Sorry for the long first post, thoughts appreciated...

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