I don't use a respirator when doing a few short runs but if I'm running several hundred pieces, I do wear one. An exhaust fan will do wonders and is a lot more cost friendly.
This will be my first time using minnow silver coloring. Question is, will I be able to heat it in the microwave or will it arc. It looks to have the flake already added.
Try lure craft and spike it for coloring and glitter. Stay away from the craft glitter as it has a tendency to melt at high temps. Double check the supplier list.
Grind or cut the used plastic up and it will reheat much better. Also, when reheating in the microwave, stir the plastic once or twice. This will help keep it from scorching.
Try bison bags. They do a reverse print laminate zipper bag. Fairly reasonable price and set up. Web site is bisonbag.com. They are located in Lockport NY.
If there is any type of lard or hog fat added to the baits, it will leach out if left in the sun for a prolonged time and cause a discoloration. Other than that, you should be good to go.