If the fan blades are in grounded bare metal, I don't think a problem would occur, provided that the RH is maintained at 50% or more. If the fan blades are plastic or are plasticised (including paint), then I could foresee a potential problem (pun intended, to stop Dewey from intervening!). However, like all ESD questions, have you ***measured*** the results? Anyone can say anything and be right or wrong. Only measurements can justify any measure you take. In any case, would not suitable airconditioning be a better solution? Brian Joel Alexander wrote: > Has anyone had any experience assessing if personal fans could have an > adverse effect on an ESD control program. We have ionizers on our > compressed air sources used to clean or dry assemblies but we have no such > policy for fans. We just transitions to lab coats with 13% carbonized > nylon. Our policy when sitting is to wear a wrist strap that is tied into > an approved ground or have the wrist strap connected to a shirt sleeve and > your pocket button attached to an approved ground. Many employees > complain that they are hot and I can see a lot more fans being used. > > > > Joel Alexander > Quality Assurance Manager > TT APSCO, INC. > > --------------------------------------------------- > 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 > ----------------------------------------------------- > --------------------------------------------------- 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 -----------------------------------------------------