![Pictured is the Mine Safety Appliances Chemox 45 minute rebreather unit. These units were incredibly popular and were made and used for decades. : r/gasmasks Pictured is the Mine Safety Appliances Chemox 45 minute rebreather unit. These units were incredibly popular and were made and used for decades. : r/gasmasks](https://i.redd.it/x3pg6nlljvx51.jpg)
Pictured is the Mine Safety Appliances Chemox 45 minute rebreather unit. These units were incredibly popular and were made and used for decades. : r/gasmasks
![Miner's Oxygen Mask/Original Case, circa 1960 For Sale at 1stDibs | msa chemox mask, msa chemox rebreather mask, msa chemox oxygen breathing apparatus Miner's Oxygen Mask/Original Case, circa 1960 For Sale at 1stDibs | msa chemox mask, msa chemox rebreather mask, msa chemox oxygen breathing apparatus](https://a.1stdibscdn.com/miners-oxygen-mask-original-case-c1960-for-sale-picture-5/f_12802/1547951584256/vintage_chemox_oxygen_breathing_appratus_mask_respirator_kit_miners_trunk_case_circa_1960_5_master.jpg)
Miner's Oxygen Mask/Original Case, circa 1960 For Sale at 1stDibs | msa chemox mask, msa chemox rebreather mask, msa chemox oxygen breathing apparatus
![Miner's Oxygen Mask/Original Case, circa 1960 For Sale at 1stDibs | msa chemox mask, msa chemox rebreather mask, msa chemox oxygen breathing apparatus Miner's Oxygen Mask/Original Case, circa 1960 For Sale at 1stDibs | msa chemox mask, msa chemox rebreather mask, msa chemox oxygen breathing apparatus](https://a.1stdibscdn.com/archivesE/upload/1121189/f_133979511548138330423/13397951_master.jpg?width=768)
Miner's Oxygen Mask/Original Case, circa 1960 For Sale at 1stDibs | msa chemox mask, msa chemox rebreather mask, msa chemox oxygen breathing apparatus
![Miner's Oxygen Mask/Original Case, circa 1960 For Sale at 1stDibs | msa chemox mask, msa chemox rebreather mask, msa chemox oxygen breathing apparatus Miner's Oxygen Mask/Original Case, circa 1960 For Sale at 1stDibs | msa chemox mask, msa chemox rebreather mask, msa chemox oxygen breathing apparatus](https://a.1stdibscdn.com/miners-oxygen-mask-original-case-c1960-for-sale-picture-10/f_12802/1547951604426/vintage_chemox_oxygen_breathing_appratus_mask_respirator_kit_miners_trunk_case_circa_1960_10_master.jpg)