3M 4255 Respirator
Please note this respirator has a limited service life. It should therefore be replaced immediately upon first sign of breakthrough (i.e. when contaminates can be detected by taste or smell inside the respirator) or within one month of issue, whichever occurs first. The 3M 4255 is a low-maintenance respirator and can be cleaned for hygiene reasons between use with the 3M 105 Face Seal Cleaner.