Home Made Respirator

[wands]

G'day,

As you may be aware I am on a bit of a "home made" trip and surprisingly came across an article titled "How I built a Fresh-Air Respirator" in the Nov/Dec '94 edition of The Australian Woodworker by Peter Russell. Sure comes out a lot cheaper than a commercially built respirator.

The attachment shows all the parts:
Fig 2: PVC pipe (have off-cuts)
Fig 3: Face shield head-piece ($30 -there abouts)
Fig 4: Aluminium to hold the Face Flange (Fig 6) (will find something)
Fig 5: Cutting from a 2kg Yoghurt tub (Fig 8) (Sure to be able to find something)
Fig 6: Face Flange (3mm foam/rubber) (Have a poo load of stuff that is suitable)
Fig 7: Shroud connected to top of Face shield head-piece (surely have an old shirt that can be sacrificed)
Fig 8: Cut out diagram of yoghurt tub
Fig 9: Hair dryer (has two intakes (one on each side)), air filter cartridge and air pipe(bought a hair dryer at a market for $5, filter cartridges - $20(+/-) each - may need two, have some flexible piping for air flow)

All up it will cost at most $75 ($35 if I tried hard and was stingier)

I was thinking of modifying one of these:
http://www.iwwdirect.com.au/details.php?name=M%20227500%20CL

Any thoughts, etc most appreciated.

Cheers, Steve

PS. Can scan in whole article, but not sure of copywright?

[rsser]

There's another design somewhere on the web that used a 2" flex pipe hung from/through the ceiling to draw air in from the outside.

Sidesteps filter effectiveness issues but obviously restricts your movement.

[Sturdee]

PS. Can scan in whole article, but not sure of copyright?

I wouldn't. The Australian Woodworker is subject to copyright and in the past they have pursued any breaches of their copyright as it affects their sales of back issues.


Peter.

[raltenhofen]

I am curious to know if you did build your own powered respirator. I live in the Arizona desert and I am concerned that these devices are uncomfortable in the heat. Australia is hot, too, right?

[aak]

...........

I was thinking of modifying one of these:
http://www.iwwdirect.com.au/details.php?name=M%20227500%20CL

.....

Hi Steve,

The link does not work, "Not found".

Regards
Andy

[RETIRED]

Andy, check the date.:wink:

[aak]

Andy, check the date.:wink:

Thanks ,

I did not realize it was a revived old thread.

Regards
Andy