Reply by Dan Lyke

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Posted on Do respirator masks do the job?

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Dan Lyke

1520 posts in 4302 days

#1 posted 12-31-2009 11:40 PM

I looked at the Trend Airshield for installing insulation and wasn’t happy with the size of particles that its filters let through. The conclusion I came to is that you either pay $35 for the activated charcoal respirators, or you pay $1200 for the 3M HEPA positive pressure systems. And the $35 was as good, it just didn’t cover the eyes (I ended up going with a pair of $70 powered blower paintball goggles that had foam of roughly the same density as the Airshield for its filters) and required more effort to breath than a positive pressure system (I’m relatively fit).

Not that for a lot of applications the Trend or Triton wouldn’t be just fine, I just wasn’t happy with it for installing insulation in my crawlspace. Make your own call.

-- Dan Lyke, Petaluma California,

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