Levels get high enough that one should stay inside.If you check inside levels they are usually the same as outside, which means a high quality filter would be advisable. Poor bees...JimSent from my U.S.Cellular© Smartphone *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html