Hazmat Oxygen Tank Backpack is a Roblox UGC back accessory by Smiling Co.. It is available for 140 Robux through the Roblox marketplace and in experiences. It has 6,054 favorites, up 36 over the past 30 days. Based on current marketplace data, this item does not currently appear eligible for future Limited status. Rolimon's first discovered this item on Sep 29, 2022.