The 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 of a high intensity heat source or flammable gas.
All face cover sales are final and non-returnable.
Material is a very stretch polyester so measurements are approximate and may vary depending on level of stretch. Typically there is a .25-.50 difference in measurements, sometimes a little more. You can take the mask and stretch it both ways to restore it to the larger size before pressing.