User friendly design protects the rescuer and helps eliminate hesitation when performing CPR. Semi-transparent face shield allows visualization of patient’s lips, mouth and nose while protecting rescuer. Printed instructions and orientation guides right on the shield help ensure correct use, even by those with little or no CPR experience. 3M Filtrete filter helps protect the rescuer. Single use, Latex Free. Measures 8″W x 12″L when open, a miniscule 17/8″ diameter when stored in its case. Comes in compact hard cylindrical case with handy key ring clasp.