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Step 17Varnishing!
I considered trying the "clothespin on the nose" to keep me from inhaling through my nose, but it turns out to not be a problem. Something about a snorkel makes a person not want to inhale through their nose. Not to mention there's a bad varnish smell to remind me if I forget.
The whole thing works great! I didn't get a headache and get all stupid from fumes. I tried shoving the tube up against a nostril and inhaling through it that way, and couldn't smell anything through it.
If I start smelling anything through it, I'll repack it with new charcoal.
The only problem was condensation dripping out of the exhale valve onto the varnish. I tied a rag over it to catch that. When I wore it as seen in the opening photo, no drips came out.
This respirator works so well I'm thrilled. I'll look for a flexible hose so I can hang the canister on my belt. It will be perfect for welding, since a welding hood won't hit the mouthpiece.
Can any chemists or welders in the audience tell me if I need to add the soda lime to filter welding fumes? Apparently manganese, manganese dioxide are in the fumes and cause harm.
The whole thing works great! I didn't get a headache and get all stupid from fumes. I tried shoving the tube up against a nostril and inhaling through it that way, and couldn't smell anything through it.
If I start smelling anything through it, I'll repack it with new charcoal.
The only problem was condensation dripping out of the exhale valve onto the varnish. I tied a rag over it to catch that. When I wore it as seen in the opening photo, no drips came out.
This respirator works so well I'm thrilled. I'll look for a flexible hose so I can hang the canister on my belt. It will be perfect for welding, since a welding hood won't hit the mouthpiece.
Can any chemists or welders in the audience tell me if I need to add the soda lime to filter welding fumes? Apparently manganese, manganese dioxide are in the fumes and cause harm.
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Apr 11, 2011. 11:10 AMfab.razorblade
says:
Will this filter work against tear gas?
Reply
28
May 9, 2012. 1:17 PM
ilpug
says:
ilpug
says:
Maybe for a few seconds against inhalation, but since his eyes are exposed, no.
Reply
Jan 24, 2009. 2:13 PMKapt.kool
says:
Would baking soda work in place of the soda lime. They are both alkaline and neutralize acids but im not sure of teh potency of the baking soda.
Reply
Jul 20, 2009. 6:52 AM___
says:
soda lime is much more base than baking soda
Reply
28
Apr 3, 2010. 5:36 PMXOIIO
says:
And do all these base belong to us?
Reply
Apr 10, 2011. 8:37 AMortenberg
says:
hahaha!
Reply
Jan 21, 2011. 3:57 PM___
says:
i meant more alkaline or more basic
Reply
1
Oct 26, 2009. 4:42 PMDELETED_madscientist167
says:
(removed by author or community request)
Feb 10, 2010. 5:56 AM___
says:
WOULD BE BAD!!! if u accidentally breathed in lye
Reply
Apr 10, 2011. 9:35 AMKinnishian
says:
Second. I once had some lye on my thigh and it dissolved slowly into the basic solution by absorbing skin water. It was very caustic. That is the end of story. But it would seriously hurt your lungs, you you'd want to at least put the charcoal between the lye and lungs [as another barrier]. Eitherway, I don't suggest it; it's hard to know if lye has the surface area necessary (my lye at least isn't *that* small of a powder).
Reply
May 9, 2009. 10:49 PMcomputer_guy
says:
I think that The only difference is that baking soda would need to be replaced often.
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