In Canada, face shields are Class I medical devices.

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A face shield has a transparent window or visor that shields the face and associated mucous membranes (eyes, nose and mouth). It protects the wearer against exposure from splashes and sprays of body fluids.

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Face shields are made of shatterproof plastic, fit over the face and are held in place by head straps or caps. They may be made of polycarbonate, propionate, acetate, polyvinyl chloride, or polyethylene terephthalate.

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They are usually worn with other PPE, such as a medical mask, respirator or eyewear.