Diana asked about a vacuum system for cleaning cryostat debris.

 I believe the best available is the Cryo-Vac-Away Two Filter system from
Instrumedics. With this inexpensive system  that you can install yourself in
your cryostat, you suction away the trimming debris as generated at the
blockface. The debris is collected in a canister inside the cryostat that
contains a coarse and fine filter. Downstream of the  primary filter, also
inside the cryostat, is a bacterial/viral filter that according to the
fabricator is 99.9% effective in capturing pathogens that might escape the
trimming debris.

The cryostat remains remains spotless and the operator has protection!.

For more info contact us. See our web site www.instrumedics.com

Bernice
schiller@instrumedics.com