A professional reglaze is safe when it is done with proper ventilation and cure time. Here is how that works in your home.
During the job
We set up ventilation and mask the room before spraying, and we keep the space clear while we work. It is why hiring a pro beats a DIY kit — the equipment and process are built around airflow.
Dry time and the smell
Expect a coating odor for the first several hours that fades as the surface cures. Keeping a window cracked and the fan running speeds it along; by the next day it is gone.
Once it is cured
After a full cure the finish is inert, sealed and easy to clean — safe for daily family use. The first 24 hours are simply about letting the chemistry finish.
The safety of a reglaze is mostly about two things: airflow during, and patience after.
On reglazing day
Keep a window or two cracked
Run the bathroom fan
Keep kids and pets out until cured
Wait the full 24 hours before use