Personal Protective Equipment (PPE), sometimes aka Personal Protective Apparel (PPA).

Mostly this page is about decapsulation

TLDR:
  * Ideally use a fume hood
  * H2SO4 will put out less corrosive fumes at decap temperatures, although it will smell really bad (and could have long term health risks)
  * HNO3 puts off NO2. Minimize release by working at lower temperatures, covering, and venting gas
  * Consider using a respirator

====== Respirator ======

McMaster likes the [[https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Full-Facepiece-Reusable-Respirator-7800S-L-Large-Silicone-1-EA-Case/?N=5002385+3294780248&rt=rud|3M 7800S]] full faceplate respirator. If you don't use a full faceplate respirator, you should also use a face shield or safety glasses.

Tips:
  * They came in different sizes, such as 7800S-L (large)
  * For longest life, store opened cartridges in a plastic bag (absorbs CO2 from atmosphere)
  * Replace periodically or sooner if you smell fumes
    * Consider dating when you open them
  * Filters reduce concentration of acid gases, but does not eliminate them
    * Will not provide adequate protection against dense acid gas
    * ie don't stick your head over something spewing red gas
    * FWIW you can get an oxygen tank for these
    * Acid gases will still burn skin when concentrated
  * Face shield replacement: I found its less expensive to buy a new unit surplus than it is to replace the face shield
  * I (mcmaster) only use filters that protect against acid gases and particulates since I do mixed work
  * Uses P100 filters
    * Evidently there is a standard that P100 filters are pink. So if its not pink, it probably won't fit
  * Following are listed as P100 acid gas w/ particulate filter
    * 60922 Cartridge/Filter, Acid Gas/P100
    * 60923 Cartridge/Filter, Organic Vapor/Acid Gas/P100 
      * 3M 60923HB1-C
      * These might be lowest cost surplus
    * [[https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Multi-Gas-Vapor-Cartridge-Filter-60926-P100-60-EA-Case/?N=5002385+3294780252&rt=rud|60926 Cartridge/Filter, Multi-Gas/Vapor/P100]]
      * IIRC I (mcmaster) typically use these
    * 60928 Cartridge/Filter, Organic Vapor/Acid Gas/P100 
      * "As recommended by the California Department of Pesticide Regulation No. 01-009-Methyl Bromide Field Fumigation"
    * OSH sells these, although I tend to buy them surplus online
    * 2017: usually $10-15 surplus, $20-25 new