Moldex 2300 Series N95 Particulate Respirator with Exhalation Valve.
RKI Instruments GX-2009 Multi-Gas Monitor ... configure it the way you want it.
Crowcon T3 Multi-Gas Confined Space Monitor ... configure it the way you want it.
ISI Emergency Escape Breathing Apparatus (EEBA).
GMI T.EX Series Single Gas Personal Monitor for Carbon Monoxide, Hydrogen Sulfide. or Oxygen. Two-Year Warranty.