![The half masks in my collection. Top row, right to left, MSA Dustfoe #66, MSA Comfo (the 1937 type), modern MSA Comfo (heavily damaged). The mask on the bottom is the US The half masks in my collection. Top row, right to left, MSA Dustfoe #66, MSA Comfo (the 1937 type), modern MSA Comfo (heavily damaged). The mask on the bottom is the US](https://i.redd.it/mmvfh0ajxrk41.jpg)
The half masks in my collection. Top row, right to left, MSA Dustfoe #66, MSA Comfo (the 1937 type), modern MSA Comfo (heavily damaged). The mask on the bottom is the US
![Dustfoe 66 Respirator for Dust and Mist MSA Mine Safety Mask Bureau of Mines Approved Fun Bathroom or Teen Boy Decor - Etsy UK Dustfoe 66 Respirator for Dust and Mist MSA Mine Safety Mask Bureau of Mines Approved Fun Bathroom or Teen Boy Decor - Etsy UK](https://i.etsystatic.com/11918441/r/il/c70d5f/3875070100/il_fullxfull.3875070100_m2z1.jpg)
Dustfoe 66 Respirator for Dust and Mist MSA Mine Safety Mask Bureau of Mines Approved Fun Bathroom or Teen Boy Decor - Etsy UK
![Dustfoe 66 Respirator for Dust and Mist MSA Mine Safety Mask Bureau of Mines Approved Fun Bathroom or Teen Boy Decor - Etsy UK Dustfoe 66 Respirator for Dust and Mist MSA Mine Safety Mask Bureau of Mines Approved Fun Bathroom or Teen Boy Decor - Etsy UK](https://i.etsystatic.com/11918441/r/il/e3d488/3922557983/il_fullxfull.3922557983_5q4n.jpg)
Dustfoe 66 Respirator for Dust and Mist MSA Mine Safety Mask Bureau of Mines Approved Fun Bathroom or Teen Boy Decor - Etsy UK
![Dustfoe 66 Respirator for Dust and Mist MSA Mine Safety Mask Bureau of Mines Approved Fun Bathroom or Teen Boy Decor - Etsy UK Dustfoe 66 Respirator for Dust and Mist MSA Mine Safety Mask Bureau of Mines Approved Fun Bathroom or Teen Boy Decor - Etsy UK](https://i.etsystatic.com/11918441/r/il/dc322e/3922557109/il_fullxfull.3922557109_3sf1.jpg)