How does heat and humidity affect the respirator cartridges when used during coil cleaning?
Humidity will decrease the service life of the respirator cartridge. Heat tends to decrease the service life of the cartridge because more of the contaminant is evaporated at a higher temperature. • What respirator do I wear to go into the acid neutralization pit outside of the Chemistry Building? That acid neutralization pit is a Permit Confined Space. In order to enter that space, additional training on special air-supplied respirators and confined space rescue must first be taken. At this time, no on e from UWM is authorized to enter that confined space. When need to enter that pit arose in the past, an outside environmental services contractor with Confined Space Entry certification has been used. • What respirator do I wear during paint spraying? The North 770 half mask with the Organic Vapor cartridges is the most appropriate respirator for normal paint spraying. The combination cartridges are also good to use, but those cartridges will not last as long. Also dust pre-filters, wh
