Small individually or bulk-packaged discs of filter paper, polyflex, or stainless-steel coupons inoculated with bacteria spores for monitoring ethylene oxide (EO), dry heat, and saturated steam sterilization,or hydrogen peroxide vapor biodecontamination. STERIS’ Spordex Biological Indicator coupons can be placed inside your devices to create a customized challenge device or put in the load in their sealed envelope. After the biodecontamination cycle is complete, coupons should be transferred aseptically to media and incubated.