Resp-O-Rator?

zealot said:
SO after reading this it's still not clear. IS the resp o rator sufficeint for g10 and such? thanks
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I would contact the Res o rator maker for that answer!

I don't use Micarta G-10 or any other handle materials that release Formeldyhype, fiberglass or anything like that because its just not worth the headaches, itchy scratches or possible health hazards for me.

I grind steel, Stabilized woods and Kirinite and a few other acrylics and the Resp O rator is the simplist and best breathing apparatus I've found.

You don't need to wear the dorky nose clip like some kids did at the swimming pool :p. Just don't breath through your nose, or only breath out through it.

As far as drooling? all you need to do is literally keep your mouth SHUT! With the mouth piece in it and any drool after that is just cause you are a drooler to start with. ;) "Close your jaw!"

A half mask in the shop is fine when you don't have to answer any calls or talk to any one.

The resp O is great when I sharp knives with my portable 2 x 72 as I am barragged with questions all day and I can simple pop it out of my mouth and talk, then back to sharpening.
 
I used to get headaches grinding micarta with a half face respirator. I've been using the resp-o-rator and haven't had any. I'll probably get some after market p100 filters soon though
 
I've been using the resp-o-rator for a while now and love the damn thing. Since the filters are behind me, it seems to supply better quality air, sans dust and fumes that my other respirators had an issue with. (mainly fumes) Either way, with having a beard, it seemed like the only choice. Glad to see others using it and liking it. :D
 
I nicked a pair of my wife's ankle socks to put over the filters. It protects them from bumps, keeps the big stuff and general grime knifemaking from settling on them.
 
carbonsteel928 said:
I've been using the resp-o-rator for a while now and love the damn thing. Since the filters are behind me, it seems to supply better quality air, sans dust and fumes that my other respirators had an issue with. (mainly fumes) Either way, with having a beard, it seemed like the only choice. Glad to see others using it and liking it. :D
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I think that's a big part of the battle right there. Just having the airflow come in from behind makes life a lot easier on the filters by starting with better air quality.
Rick Marchand said:
I nicked a pair of my wife's ankle socks to put over the filters. It protects them from bumps, keeps the big stuff and general grime knifemaking from settling on them.
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You Devil you!:devilish: Stole a pair of your wife's socks? Just wait till she see them on your resP O rat or no telling what she will do with your favorite T-shirt! :p

Besides, New filter aren't very expensive and its the fine stuff you really have to worry about.
 
P.Brewster said:
I used a functionally identical device that I built myself. The main issue is drool; your mouth will be constantly salivating. The second issue is that your lips become the boundary between filth and cleanliness. Imagine wearing one of these while grinding G10 for 2 hours. Your face and lips will be covered in G10 dust. You finish your grind session and take out the respirator. If you lick your lips, you have a mouthful of G10 dust. The next time you go to use your respirator, one end of the mouthpiece will be covered in your evaporated saliva, the other end will be covered in G10 dust. You'll find yourself constantly cleaning it and feeling like dust is getting into your mouth.
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Do you have any pics of it and details on how I can build one too? Apparently the manufacturers of the resp o rator are currently not producing the device or the filters and are focusing on making traditional masks and/or filters.
 
"Using my rasps and files is not one bit slower than using a belt grinder."[/QUOTE]
Not to start anything but you do mean not slower for you. Because I'd put any competent knifemaker with a grinder up against rasps and files all day. Esp. if I can bet on it!
 
Until yesterday this was a five year old thread (necropost).
 
Oh ya? Well I'm going to run a hose from outside, along the shop ceiling, and dangle it town to a snorkel I can breath through. Nice clean fresh air. Might even use a low-pressure pump to blow air through the hose. Take that, resp-O-rator!
 
Mecha said:
Oh ya? Well I'm going to run a hose from outside, along the shop ceiling, and dangle it town to a snorkel I can breath through. Nice clean fresh air. Might even use a low-pressure pump to blow air through the hose. Take that, resp-O-rator!
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Your idea is a normal setup in most labs and such. I have a variable speed blower with HEPA filters that is used in paint booth air supplies. I will pipe it from outside clean air through PVC pipe to the various work areas in the shop where you would need PAPR and have a down tube with a valve on it. You use light weight flex hose like from an old style hair dryer ( vacuum hose is too heavy) and connect it to a simple hood and face shield. You merely push the hose on the tube, open the valve, and work with a nice flow of fresh and cool air over your head and face. To go elsewhere, unplug and go to another station as needed.
 
Mecha said:
Well I'm going to run a hose from outside, along the shop ceiling, and dangle it town to a snorkel I can breath through.
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Because I believe this is in jest, I'm merely posting this so someone new doesn't actually try this. You would need to add a blower of some sort to maintain a supply of fresh air/oxygen. Don't quote me on the exact numbers, because I'm digging back about 30 years into my memory when I was an undergrad in the exercise physiology dept at University of Illinois. Average respiratory volume (the total amount you can inhale and exhale) is about 3-4L, so if your hose has a volume greater than that, you will be not be able to exchange fresh air for what you exhale and you will quickly suffocate.
 
weo said:
Because I believe this is in jest, I'm merely posting this so someone new doesn't actually try this. You would need to add a blower of some sort to maintain a supply of fresh air/oxygen. Don't quote me on the exact numbers, because I'm digging back about 30 years into my memory when I was an undergrad in the exercise physiology dept at University of Illinois. Average respiratory volume (the total amount you can inhale and exhale) is about 3-4L, so if your hose has a volume greater than that, you will be not be able to exchange fresh air for what you exhale and you will quickly suffocate.
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Oh it’s exactly half jest and half serious. Would be a nice setup at the grinder for extensive grinding sessions. I’ve done some item retrieval diving with a pressurized air hose, but if I set up a grinding hose/helmet I would go for larger diameter and volume.
 
Mecha said:
larger diameter and volume.
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You'd still need some way to force fresh air/oxygen into the system. Otherwise you'll just be re-breathing your exhaled air if the volume of the hose/tube is equal to or greater than you vital lung capacity. This is why snorkels are not any longer than they are.
 
weo said:
You'd still need some way to force fresh air/oxygen into the system. Otherwise you'll just be re-breathing your exhaled air if the volume of the hose/tube is equal to or greater than you vital lung capacity. This is why snorkels are not any longer than they are.
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Yes, the diving hoses are pressurized as well. Using a blower wouldn’t be a problem.
 
Stacy E. Apelt - Bladesmith said:
Your idea is a normal setup in most labs and such. I have a variable speed blower with HEPA filters that is used in paint booth air supplies. I will pipe it from outside clean air through PVC pipe to the various work areas in the shop where you would need PAPR and have a down tube with a valve on it. You use light weight flex hose like from an old style hair dryer ( vacuum hose is too heavy) and connect it to a simple hood and face shield. You merely push the hose on the tube, open the valve, and work with a nice flow of fresh and cool air over your head and face. To go elsewhere, unplug and go to another station as needed.
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This is what I’m talking’ about! Having something strapped to one’s face gets old. I think it’s time to make a pressurized air flow grinding helmet! :eek::D
 
weo said:
You'd still need some way to force fresh air/oxygen into the system. Otherwise you'll just be re-breathing your exhaled air if the volume of the hose/tube is equal to or greater than you vital lung capacity. This is why snorkels are not any longer than they are.
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You're assuming that you inhale and exhale into the same hose

Systems like that only use the hose to supply, then use and exhale valve to exhaust.

PAPR systems, scuba, even a simple half mask, they all do that.
 
Mecha said:
This is what I’m talking’ about! Having something strapped to one’s face gets old. I think it’s time to make a pressurized air flow grinding helmet! :eek::D
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Powered Air Purifying Respirator (PAPR) System
All you need is a credit card
 
The system I have is designed for two to four hoods and delives a LOT of air. It can be turned down for lesser demand. It was for a paint booth setup and has a 40' hose. I would use that hose to connect to the hard piping and shorted lighter hoses for the hoods.

I currently use a slightly modified Breath Easy helmet system. I have a backpack blower as well as the Belt-pack unit. The piped in air will allow me to ditch the expensive heavy battery and blower part. There are tons of cheap helmets and hoods online that will with any good PAPR system. I bought a case of disposable hoods for paint booths as well as a case of full body pharmaceutical suits/hoods for about $10 each. All I need it the top portion, so I cut off the long bib on the hoods from the paint and pharma suits.
 
Stacy E. Apelt - Bladesmith said:
The system I have is designed for two to four hoods and delives a LOT of air. It can be turned down for lesser demand. It was for a paint booth setup and has a 40' hose. I would use that hose to connect to the hard piping and shorted lighter hoses for the hoods.

I currently use a slightly modified Breath Easy helmet system. I have a backpack blower as well as the Belt-pack unit. The piped in air will allow me to ditch the expensive heavy battery and blower part. There are tons of cheap helmets and hoods online that will with any good PAPR system. I bought a case of disposable hoods for paint booths as well as a case of full body pharmaceutical suits/hoods for about $10 each. All I need it the top portion, so I cut off the long bib on the hoods from the paint and pharma suits.
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Piping in unfiltered air from outside would be the most fun, as you'd never know when a bug is going to get blown into the helmet.
 
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