MSA ClearVue DustFoe Respirator
The MSA ClearVue DustFoe Respirator was a half-mask with a flutter valve and a clear plastic cartridge so you could see when it was time to change the filter pad. Made by Mine Safety Appliances.
Similar masks in my collection: MSA GasFoe Respirator, Pulmosan Respirator R-17, Pulmosan Respirator RA-110, CESCO Respirator 90-F
Model and Bureau of Mines stamps "DUSTFOE" "B.M.2147"
Manufacturer, patent, and Bureau of Mines stamps "PAT. NO. 2220374" "M.S.A. CO." "BM 2148" "DUSTS"
Box top view "Clear-Vue DUSTFOE RESPIRATOR"
Box back view "INSTRUCTIONS FOR USE OF THE DUSTFOE RESPIRATOR"
Box side view "PARTS LIST for DUSTFOE RESPIRATOR"
Box side view "M-S-A CATALOG No. CM-41645 Clear-Vue DUSTFOE RESPIRATOR APPROVED FOR ALL DUSTS MINE SAFETY APPLIANCES COMPANY PITTSBURGH, PENNSYLVANIA MADE IN U.S.A."
Box side view "PERMISSIBLE RESPIRATOR FOR DUSTS APPROVAL No. 2148"
Filter box top view "3 Per Package Cat. No. CM-41647 ALL DUST FILTERS for use with M.S.A. Clear-Vue DUSTFOE RESPIRATOR U.S. Patent Nos. 1,793,164 1,818,155 MINE SAFETY APPLIANCES COMPANY PITTSBURGH, PA. Made in U.S.A."
Filter box front view "Instructions for Replacing Dustfoe Filters"