electrode fumes in confined spaces?

[addjunkie]

Africa! Typical!

The culprits were from the land of scouse!

Nice to actually see a sensible debate about such things. Quite often hse gets a bad name.

 

[knighty]

https://www.spraygunsdirect.co.uk/i...ar-c-respirator-set.html#sthash.hrJGtPBg.dpbs

The above but you need to separately filter the incoming air from the compressor and it MUST intake air from a fresh source...

compressor intake air is fresh, outside the building, around the corner and 4m up in the air

but... I think I might just hook up a pressure regulator and a bit of thin hose to gently blow fresh air in behind my mask, fumes aren't horrible enough to put up with anything getting in the way too much

any idea why air feed needs to be filtered ? - maybe incase there's any nasties in the air tank ? I've got an industrial desiccant dryer (still to be fitted) and was going to put an air filter in before that :-o

 

[addjunkie]

In a piston air compressor you normally get a little bit of oil mist. If it were me Id be DIY ing a fan down hover hose

 

[lionleg]

The air from a compressor is contaminated as previously stated. If I remember correctly, it can be passed through a carbon filter to make it suitable for breathing. I'm 99% certain that it's what shot blasters use.

 

[Kent]

Probably due to contaminants, oil, possible legionella etc...I wouldn't fancy inhaling or drinking what lurks inside a compressor tank...yuck..

I am sure it will kill you, just a matter of if it takes days, weeks, years or decades to do so

 

[henry Kadzielski]

The air from a compressor is contaminated as previously stated. If I remember correctly, it can be passed through a carbon filter to make it suitable for breathing. I'm 99% certain that it's what shot blasters use.

Exactly that. I have a setup for abrasive blasting and the air coming from the compressor is filtered to breathing standard. I also use this filter to filter air from my other electric compressor to use my 3m pressure fed mask. I use the 3m lid when welding alli inside fuel tanks. Any one that has welded alli known the fumes that come off and the sheer amount of them. The compressors also have refrigerated dryers so when inside and lid down the cool air makes life that much better.

 

[Paul G]

When I was coded ( read, had a proper job ) one of the things I used to make was stainless pressure tanks for dentists.
( two 10" stainless end caps and a length of SCH 10 pipe )
The compressor was also stainless with PTFE bearings and seals so no oil.


The welds had to be purged perfect and had to be spotless.
Something that was drilled into me.

Think of me next time your in the chair.


Paul G

 

[Kent]

When I was coded ( read, had a proper job ) one of the things I used to make was stainless pressure tanks for dentists.
( two 10" stainless end caps and a length of SCH 10 pipe )
The compressor was also stainless with PTFE bearings and seals so no oil.


The welds had to be purged perfect and had to be spotless.
Something that was drilled into me.

Think of me next time your in the chair.


Paul G

That is for breathing quality 02 feed though yes?

 

[Paul G]

That is for breathing quality 02 feed though yes?

Personally when faced with the drill I grip the chair and HOLD my breath.

 

[addjunkie]

When I was coded ( read, had a proper job ) one of the things I used to make was stainless pressure tanks for dentists.
( two 10" stainless end caps and a length of SCH 10 pipe )
The compressor was also stainless with PTFE bearings and seals so no oil.


The welds had to be purged perfect and had to be spotless.
Something that was drilled into me.

Think of me next time your in the chair.


Paul G

I used to sleep with a lady dentist. The drilling was quite pleasent. Shame about the phsyco tendencies. She did give me an ultasonic bath from work though, so can have been all bad.

 

[Kent]

Personally when faced with the drill I grip the chair and HOLD my breath.

Ha, that is the reason so many faint lack of o2 while holding thier breath

 

[Robotstar5]

I hope all this info isn't in vain, the OP hasn't been on since the first post.

 

[Woody.v8]

I hope all this info isn't in vain, the OP hasn't been on since the first post.

I was thinking the same

 

[Farside]

I hope all this info isn't in vain, the OP hasn't been on since the first post.

He's off looking for a lady dentist.

 

[penfold]

I'd concur with all the advice given about enclosed space working, it's pretty much the no.1 cause of death for seafarers through people not following what are pretty simple rules; once welding fumes are added on top of the hazards innate to enclosed spaces it means you need to be considering whether you need to do the work at all, or if possible tackling it some other way.

 

[addjunkie]

I'd concur with all the advice given about enclosed space working, it's pretty much the no.1 cause of death for seafarers through people not following what are pretty simple rules; once welding fumes are added on top of the hazards innate to enclosed spaces it means you need to be considering whether you need to do the work at all, or if possible tackling it some other way.

Inert gas is the nearest Ive seen to a fatality. And that was in open air, removing a bullet vent.