On 10/4/01 12:19 AM, "Robert Coyote" <email@example.com> wrote:
> The "best" are positive air pressure types.. you know.. hoods with fans
Perhaps, but passive designs are more reliable and are more likely to work
in all environments after sitting on a shelf for five years.
This archive was generated by hypermail 2b30 : Sat May 11 2002 - 17:44:12 MDT