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Fit Testing with the Person's Own Assigned Respirator
Some respirators, especially older models, do not have fit test
adapters available. In that case, a permanently probed test respirator
is the only option.
Respirator Manufacturers' Technique
There are a growing number of respirator manufacturers who provide
respirator sampling adapters that permit fit testing in one's own
respirator. Contact your distributor or call the manufacturer direct and
ask if such accessories are available.
TSI Fit Test Adapter Kits
TSI Respirator Sampling Adapters allow you to fit test using the
respirator that is actually used by that individual. Respirator sampling
adapters for most major brands of respirator are available. A
complete list of fit test adapters available from TSI and from respirator
manufacturers is posted on www.tsi.com.
Homemade Adapters
A sampling adapter can be made by modifying a respirator cartridge.
This usually involves running a tube through the cartridge and into the
respirator. TSI recommends that this option be avoided because it is
so easy to do poorly. The most fundamental mistake that is often
made is to not extend the sampling tube through the inhalation valve
and into the breathing zone. This, combined with problems sealing
around the outside of the tube, make this option unattractive.
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