Smoke filtering apparatus
Smoke plume evacuation filtration system
Smoke sorbing device
Smoke-free work area
Smoker's module
Snap-in, snap-out clean room ceiling system
Soot filter
Soot filter for an exhaust arrangement of an internal combustion
Spark arrester of muffler
Spring-loaded air cleaner cover
Sterile laminar airflow device
Sterile trap accessory for use with surgical aspirator
Sterilization container filter system
Sterilized filter and a method for manufacturing the same
Structure and filter for paint spray booth
Structure for holding fixing screws
Structure for supporting air filter
Structure of air cleaner box
Substrate transport apparatus, pod and method
Substrate transport container