Offered as gas collection method for human, biological, and industrial waste environments, Sumo-Bag transports malodorous, higher polar, semivolatile compounds such as p-Cresol. Construction consists of metalized Teflon fluorinated ethylene propylene (FEP) film and valve with septum. Typically air-sampling pump is used to pump air through Teflon tubing, which has needle attached to one end so it can be inserted through valve’s septum top.