Question

face mask: a full face shield, or combination of eye protection are necessary when splashes, sprays, spatters or droplets of blood or opim pose a hazard to the eyes, nose, or mouth. face shields should be used if the risk and amount of potential splash or splatter to the face is substantial, or the potential splash risk is unknown (e.g., during bbp cleanup). if the splash is minimal, glasses with side shields may be adequate. splash goggles or the use of a mask in combination with an eye protection device may be required in higher risk situations. face shields should be used if the potential splash risk is _______ unseen unheard unknown check

Explanation:

Según el texto, cuando el riesgo de salpicaduras al rostro es sustancial o cuando el riesgo potencial de salpicadura es desconocido (por ejemplo, durante el limpiado de sangre y otros fluidos biológicos), se deben usar protectores faciales.

Answer:

unknown