The Prestan CPR Practice Shields on Roll offer an efficient, high-volume personal hygiene solution for institutional life support classrooms. These single-use protective film barriers feature an integrated micro-porous bacterial filter grid designed to cover the face of the training manikin during consecutive mouth-to-mouth resuscitation drills. Packaged in a compact dispenser box that allows sheets to be pulled and torn sequentially along perforated boundaries, this system minimizes cross-contamination risks during multi-student training cycles while eliminating the need for immediate, high-frequency chemical manikin scrubbing between turns.