My ~$100 Fresh Air Hood System

I'm using an IR 60 gallon, 5hp, 2 stage compressor rated 14.8 CFM@90 psi.
I think the hood and gun together exceed the compressors output.

We shot a VW bug last summer. Shell in one session, parts in another, using the gun and hood. Only took about 10 minutes for each session.
During that time between the tank and compressor the necessary output was maintained, but the motor ran continuously.
Much longer and I'm sure CFM would've dropped too low.

Yes, still using the Chinese filter on a belt.

Just using the Flexilla hose. It has only ever had air filtered through the Arrow system run through it.

This setup wouldn't pass muster for daily professional use.

But I think it is far superior to a cartridge type mask and I'm happy with it for a couple hours use per year.
 
You might consider increasing your comp Supply air piping too which could be cutting your cfm Intake showing up as low cfm Output.
Your 'straw' is a bit undersized for the length.
Running thru a filter immediately into the head is quite different than a length of same ID pipe.

Consider running the same size pipe as the carb intake throat 6' to the air filter on a V8 running WFO....

You enjoy cobbling up stuff,incorporate a cone/round K&N clamp on with some larger pvc with a rubber/radiator hose to comp for vibration elimination at the comp.
Kinda what I did ....
 
Some years ago I worked painting Train coaches and we used fresh air hoods. The breathing air was the same air teed and used for the spray equipment (fyi 5 gallon pressure pot filled twice PER but side and vestibules!) and OSHA (CFR 1910) required Grade D breathing air and an alarm on the air source to monitor for CO (carbon monoxide). We used these hoods when using stripper (55 gallon drum per coach), zinc chromate or moisture cured urethane primer and the polyurethane color. We sprayed more paint is one day than most collision shop painters sprayed in a month.
Any piston type compressor that uses oil has the potential to have high CO as a byproduct of high heat and compression as well as where intake of air compressor is located. A dedicated oil less compressor is used a lot on the 1 or 2 person breathing systems you can buy from Allegro etc.
 
nytrainer said:
Some years ago I worked painting Train coaches and we used fresh air hoods. The breathing air was the same air teed and used for the spray equipment (fyi 5 gallon pressure pot filled twice PER but side and vestibules!) and OSHA (CFR 1910) required Grade D breathing air and an alarm on the air source to monitor for CO (carbon monoxide). We used these hoods when using stripper (55 gallon drum per coach), zinc chromate or moisture cured urethane primer and the polyurethane color. We sprayed more paint is one day than most collision shop painters sprayed in a month.
Any piston type compressor that uses oil has the potential to have high CO as a byproduct of high heat and compression as well as where intake of air compressor is located. A dedicated oil less compressor is used a lot on the 1 or 2 person breathing systems you can buy from Allegro etc.
Click to expand...
Do you think something like this would be sufficient for occasional home use?

https://www.amazon.com/California-A...B00WM1VPKE/ref=psdc_551236_t2_B01LYHYHEA?th=1
 
95maxrider said:
Do you think something like this would be sufficient for occasional home use?

https://www.amazon.com/California-A...B00WM1VPKE/ref=psdc_551236_t2_B01LYHYHEA?th=1
Click to expand...
I’m not an expert on this but just wanted to relay what I know from my experience regarding often overlooked CO. That said I would believe that tank would supply the volume of air needed. It could also be a useful portable compressor for a nailgun, airbrush, etc
Breathing CO has its dangers but I’m much more concerned about exposure to isocyanates, methylene chloride and VOC’s that a regular respirator with filters isn’t always adequate for. I use a fresh air supplied hood and/or facemask depending on what operation I’m doing.
 
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