Your cartridges do not have an off and on button they are always working. When your done put the cartridges in a freezer bag to stop them from absorbing everything in the atmosphere. Clean it after every use. Alcohol swaps work fine. If you have a beard or mustache that is around the seal your respirator will not work right. At work we must be clean shaven. A bit extreme for a hobby but I thought you should know. If you can smell the solvents there in your bloodstream that is the bottom line. Make sure you have the correct cartridges they make different ones for different applications. Your paint supplier will have them. We use MSA brand they work good. Also check to make sure it works. Cover the cartridges with both hands and breath in you should feel the mask suck to your face. Cover the valve in the middle of the mask it should puff out as you breath out. Now your sealed and safe.
Edited by mredzadventure, 20 October 2012 - 12:45 PM.