It's because of breathing issues that I try to avoid all sprays, except for a very few specific household cleaners. I usually don't starch my fabric, but when I do, I saturate it in a plastic tub of liquid starch/water mixture and hang it on the outdoor clothesline until it's damp dry & ready to iron. An alternative to an outdoor clothesline would be to hang it on a rack in the bathtub or shower.