![Conversion of self-contained breathing apparatus mask to open source powered air-purifying particulate respirator for fire fighter COVID-19 response - ScienceDirect Conversion of self-contained breathing apparatus mask to open source powered air-purifying particulate respirator for fire fighter COVID-19 response - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S2468067220300389-gr1.jpg)
Conversion of self-contained breathing apparatus mask to open source powered air-purifying particulate respirator for fire fighter COVID-19 response - ScienceDirect
![Russian Shelves, from left to right: SHIP-2B(k) Facepiece (IP-4 Kit), SHM-62u Facepiece (PMG-2 and GP-5 Kits), SHM-66Mu Facepiece (PMG-2 and GP-5M Kits), SHMG Facepiece (PMG Kit), SHMB Facepiece (PBF Kit), SHMS-R Facepiece ( Russian Shelves, from left to right: SHIP-2B(k) Facepiece (IP-4 Kit), SHM-62u Facepiece (PMG-2 and GP-5 Kits), SHM-66Mu Facepiece (PMG-2 and GP-5M Kits), SHMG Facepiece (PMG Kit), SHMB Facepiece (PBF Kit), SHMS-R Facepiece (](https://preview.redd.it/dr4lqlaz6e431.jpg?auto=webp&s=cf296b83942d0a8b4eafa4e11912038caf81853a)
Russian Shelves, from left to right: SHIP-2B(k) Facepiece (IP-4 Kit), SHM-62u Facepiece (PMG-2 and GP-5 Kits), SHM-66Mu Facepiece (PMG-2 and GP-5M Kits), SHMG Facepiece (PMG Kit), SHMB Facepiece (PBF Kit), SHMS-R Facepiece (
![Toxic Gas Mask with Adjustable Strap for BB Gun CS Cosplay Costume Halloween Masquerade No Batteries With Double Fans - Walmart.com Toxic Gas Mask with Adjustable Strap for BB Gun CS Cosplay Costume Halloween Masquerade No Batteries With Double Fans - Walmart.com](https://i5.walmartimages.com/asr/b463dffa-9d67-42fc-afcb-ab93f8157b58_1.f33ac2a7efbbee56ed84804e6b3e38fc.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Toxic Gas Mask with Adjustable Strap for BB Gun CS Cosplay Costume Halloween Masquerade No Batteries With Double Fans - Walmart.com
![This came in the mail today, thought I'd post. Here's my IP-4 closed circuit rebreather with a ShIP-2b(k) facepiece and a RP-4 regenerative canister : r/gasmasks This came in the mail today, thought I'd post. Here's my IP-4 closed circuit rebreather with a ShIP-2b(k) facepiece and a RP-4 regenerative canister : r/gasmasks](https://preview.redd.it/iybwyginhwd61.jpg?auto=webp&s=652b3152403c621ac1ed3b66fd4d24a9367e6bea)