Yes, a hood can have good containment with only 60 fpm face velocity, but that can be reliably achieved only with extremely good design and maintenance of the entire room in which the hood is placed. In my opinion, simply buying a hood that claims to demonstrate good containment at 60 fpm, without reference to the details of its intended location, is folly.
Peter Zavon, CIH
Penfield, NY
PZAVON**At_Symbol_Here**Rochester.rr.com
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