The AstroHood S-II terminal filter supply hood is well-suited to use in pharmaceutical and biotech cleanrooms, or any application where leak-free operation and routine system performance validation are required. The AstroHood S-II supply hood may be installed in a variety of ceiling types, including tee-bar ceilings, gel-seal grid systems, and plaster ceilings. Designed for controlled, clean-space applications up to ISO Class 4 by using an adequate number of units with appropriate spatial coverage of the area.