Whirl-Pak® Cellulose Speci-Sponge® bags are designed for environmental surface sampling of work areas, equipment, animal carcasses, and any other place where testing for Listeria, Salmonella, E.coli, coliforms, and other foodborne pathogens, or anthrax is required. Each sponge is packed in a sterile, sealed write-on bag with your option of a dry or hydrated sponge. To use the cellulose sponge for surface sampling, tear open the top of the Whirl-Pak® bag, squeeze out any excess buffer (if using a hydrated sponge), swab the surface, insert the sponge back into the bag, fold the top of the bag over three or more times, and bend in the wire tabs to close. Send to a lab for testing. Whirl-Pak® Cellulose Speci-Sponge® bags are designed for environmental surface sampling of work areas, equipment, animal carcasses, and any other place where testing for Listeria, Salmonella, E.coli, coliforms, and other foodborne pathogens, or anthrax is required. Each sponge is packed in a sterile, sealed write-on bag with your option of a dry or hydrated sponge. To use the cellulose sponge for surface sampling, tear open the top of the Whirl-Pak® bag, squeeze out any excess buffer (if using a hydrated sponge), swab the surface, insert the sponge back into the bag, fold the top of the bag over three or more times, and bend in the wire tabs to close. Send to a lab for testing.