The effective service life of any chemical cartridge or canister depends on the conditions of use. Conditions that impact service life are: type and concentration of pesticide as well as other contaminants; user’s breathing rate; relative humidity; and temperature. For a given pesticide, the higher the concentration of the contaminant gases or vapors, the shorter […]
Filter
Particulate Filter Use Limitations
For pesticides, EPA regulations [40 CFR 170.507(d)] require the replacement of particulate filters when damaged, torn, soiled, or it becomes uncomfortable for the wearer to breathe. Additionally, particulate filters should be replaced according to respirator manufacturer recommendations or pesticide labeling (whichever is more frequent). For example, filtering facepiece respirators (FFRs) are designed by respirator manufacturers […]