MultiVapor 2.1

MultiVapor is a computer program that helps determine the duration of air-purifying respirator cartridges used to filter out toxic organic vapors from the air. It can also be used for larger filters and for carbon beds of any size for laboratory studies. The program helps calculate the breakthrough time, which is the amount of time after the first continuous use of a cartridge when the user may be exposed to a certain concentration of hazardous vapor. The service life is the breakthrough time plus the amount of time the cartridge can be used.