The face mask should not be used (1) in any surgical setting or where significant exposure to liquid, bodily or other hazardous fluids may be expected; (2) in a clinical setting where the infection risk level through inhalation exposure is high; or (3) in the presence f a high-intensity heat source or flammable gas. Health Supplies makes no warranties, either express or implied, that the face mask prevents infection or the transmission of viruses or diseases.