This photo was also taken from my work. They are spelling it out how you would if you were sounding it out. It should be spelled as Band-Aid. If there is two or more then they should have just added an s at the end instead of the es.
Linguistics for Teaching
“The job of the linguist, like that of the biologist or the botanist, is not to tell us how nature should behave, or what its creations should look like, but to describe those creations in all their messy glory and try to figure out what they can teach us about life, the world, and, especially in the case of linguistics, the workings of the human mind.” –Arika Okrent
Linguistics for Teaching 