The University of Texas at Houston, McGovern Medical School, Department of Otorhinolaryngology also has some good summarized advice for P100 masks.
They recommend 15 mL of bleach per gallon for sanitizing the mask.
Also, I have the impression that as long as the filter is not visibly soiled and it is not hard noticeably harder to breath with the respirator on compared to when you are not wearing the respirator, then the filter can be used indefinitely.
Most filter replacement schedules assume that you are working with some sort of vapor that will attack the filter rather than using P100 filters for particular protection alone.
The University of Texas at Houston, McGovern Medical School, Department of Otorhinolaryngology also has some good summarized advice for P100 masks.
They recommend 15 mL of bleach per gallon for sanitizing the mask.
Also, I have the impression that as long as the filter is not visibly soiled and it is not hard noticeably harder to breath with the respirator on compared to when you are not wearing the respirator, then the filter can be used indefinitely.
Most filter replacement schedules assume that you are working with some sort of vapor that will attack the filter rather than using P100 filters for particular protection alone.