Disclaimer These masks are not medical grade and are not meant to replace the N95 masks. They are not suitable for use in a surgical setting or where there would be significant exposure to liquid, bodily or other hazardous fluids, use in a clinical setting, or use in the presence of a high-intensity heat source or flammable gas. Wearing a mask is not guaranteed to prevent transmission of disease and is not a substitute for other recommended disease-avoidance measures.
Here is a video on how to attach grommets:
drive.google.com/file/d/1D4zSwwGOkhJxD-CtXBJjtiIFOXm1R4Oe/view