Do You Wear a Respirator?

I’m keenly aware of the affects of breathing in too much dust thanks to an unfortunate attempt years ago to carve a duck decoy with a moto-tool! Now, whenever I’m sanding or routing (or doing any job that produces a lot of fine dust) I wear a dust mask. The problem with your typical dust mask is that they don’t work very well.

Mediawebserver.jpgBelieve me, this is not an area where “good enough” suffices. You certainly don’t want to scrimp on dust protection, but too often I’m using an old mask that’s past the point of effectiveness. That’s why I recently spent the money on a half-mask respirator (photo at left). I like this 3M product for several reasons, including the fact that it’s comfortable to wear and economical (they retail most places for around $10 – $12).

But the thing I like best about it is that there are a wide variety of filters available. There are cartridges and filters designed to be used when working with sawdust, as well as fiberglass insulation, pesticides, lawn chemicals, and spray finishes. The respirator I purchased didn’t come with a cartridge included, so I was able to save a little by buying just the ones I needed.

I picked up my respirator at McFeely’s.com, but they’re available at several locations including Ace Hardware and Lowes.

3 Responses to “Do You Wear a Respirator?”

Jim Burr said,

I can’t imagine not using a respirator of some kind. As a Respiratory Therapist, the dangers and resulting desease processes that can occurs from inhalation of sawdust and other particulates is something we see on a daily basis. Fibrotic lung issues can be avoided by using a respirator. I think you have to ask yourself what’s the bigger inconvience, not breathing or putting on the mask.

Jon Hughes said,

Any advice on what filter is “sufficient” to protect a woodworker against dust? I have heard that you should have protection down to .03 microns, but have never seen a filter that works to that level.

Joel Hess said,

Jon,

This is a great question. Here is the information I could dig up on the P100 pancake filter that I use with the half-mask respirator (it comes from OSHA’s website):

“…Under the new NIOSH criteria, the filter materials for these respirators are tested at a flow rate of 85 L/minute for penetration by particles with a median aerodynamic diameter of approximately 0.3 um. Three categories of filter (N, R, and P) are designated, each with three levels of filter efficiency (95%, 99%, and 99.97%) for a total of nine respirator classes. The three levels of filter efficiency include the Type 100 (99.97% efficient), Type 99 (99% efficient), and the Type 95 (95% efficient)…”

I’m waiting to hear from 3M to see if they have a filter that meets your standard of .03 microns.

Joel

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