I have an unusual question for all you chemical types out there. We are doing some heavy cleaning with IPA and our organic vapor cartridges on the respirator masks don't seem to keep the smell of the IPA away from the operator. According to the different data sheets I've looked at say that an organic vapor cartridge should work. My question is can you still smell the fragrance of the IPA while having all the bad stuff trapped by an organic vapor cartridge? If so how would you know when the cartridge was saturated? Thanks, KennyB --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 15.0 To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------