Formalin Storage Bags manufactured by Globe Scientific are produced from strong 3-mil Serinex with a patented manufacturing process to eliminate leaks. The bag is preprinted with a biohazard symbol, formalin warnings, and emergency response block as required by OSHA for added convenience. The doubletrack zipper provides easy closure and airtight security. The liquid-tight formalin bag with vapor barrier effectively prevents the transmission of harmful fumes associated with formalin.