Inquiry (采购产品): clay dust in the classroom I teach multiple ceramics classes in the same room. The dust is unbelieveable. What type of venting system can I propose for grant monies? My room is 30' x 40' x 12' high. Please e-mail asap. Andrea Guard **** Hidden Message ***** andrea guard 5105 SE 302nd Avenue Gresham, OR 97080 USA Company: sam barlow high school Title: art instructor E-mail: aguard@gresham.k12.or.us **** Hidden Message ***** aguard@gresham.k12.or.us
