Mine is a Lee Valley 'fatigue mats'. Closed cell 'vinly' foam - no smell the next day (darkroom not that large 10x8 feet). http://www.leevalley.com/wood/page.asp?SID=&ccurrency=1&page=32099&category=1,43456,43465 ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.