If you plan to use Goop glue to reattach the grommet trim on your LP X-Change mask, I'd suggest that you set aside the mask 2 or 3 days out in the open after applying the glue. There is definitely a chemical type smell to the mask. It takes a good weekend to dissipate the odor. Another tip to using Goop glue is to mask the edge between the mask mesh and the grommet material with gaffer tape. Also cover the grommet with gaffer tape too. Some people have the tendency to use too much glue and once you reinsert the grommet over the edge of the mask, the glue squeezes out everywhere. The tape protects the mesh and the grommet. This is similar to masking edges when you paint a wall.