Two acceptable ways to cover sprinklers in paint booths or other areas where sprinklers are subject to be coated in a substance are cellophane bags and ______.

The correct approach to protecting sprinklers in environments like paint booths is to use materials that provide adequate coverage while ensuring that they do not affect the operation of the sprinkler system. Thin paper bags serve this purpose well.

Thin paper can effectively cover the sprinkler heads to prevent overspray or other substances from coating the sprinklers, which could impede their functionality in an emergency. Furthermore, paper is a breathable material that does not create a moisture trap, maintaining the integrity of the sprinkler head and surrounding ceiling space.

Using certain other options may not provide the same level of protection or could introduce issues. For example, materials that are too thick or non-breathable might trap moisture or heat, potentially causing corrosion or malfunction in a sprinkler system, which is why thin paper is deemed acceptable in this context.