Respirator cartridges do not last forever. The effective life of a cartridge depends on several factors. One thing to consider is the exertion level of the worker. An individual breathing at twice the rate of another will pull two times the amount of particulates through the cartridge. The standard or average life of a cartridge is set based on a high-end moderate inhalation rate.

Some respirator cartridges have a higher level of activated charcoal. The manufacturer's description will give the grams in each cartridge. Proper adjustments to the service life can be made based on this information. Temperature and humidity will also affect the life of a cartridge. The higher the heat and humidity, the shorter the effective life of the cartridge will be.

Life of Respirator Cartridges

If there are multiple contaminants, this will have an affect on respirator cartridges. A compound that is not absorbed as well as another may alter the estimated service life. Another factor to keep in mind when determining the life of a respirator cartridge is the amount and type of contaminants in the air. The manufacturer gives an estimated cartridge life that must be evaluated in relation to the actual use of the product. Some cartridges are designed for use with or without a HEPA filter. The HEPA filter can remove as much as 99.7% of the particulates in the air.

It is impossible to rely on odor to determine the effective service life of cartridges. All factors must be taken into consideration according to the guidelines of the manufacturer and NIOSH. These are clearly defined on the product and on the Internet. To avoid potentially harmful physical effects of improper use, follow the guidelines at all times. Make certain the cartridge is designed for the environmental contaminate to be filtered.