Originally Posted By: climberslacker
The only reason that you have to replace the masks after the real person is because they have their secretions and vomit on them correct? You aren't really worried about the one way valve part however. Please if I am wrong let me know!


Correct, but also because they breathed (sp?) into the mask. The mask itself is easy to clean, but cleaning the one-way valve would be unpractical and possibly damaging to the valve itself. Therefor the valve is a disposable item.
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''It's time for Plan B...'' ''We have a Plan B?'' ''No, but it's time for one.'' -Stargate SG-1