I am a summer intern for a metal fabrication company that manufactures doors. I work in a warehouse-type environment with cutting machines and CNC machines that are used to cut the metal. As a CNC machine operator, should I be concerned about breathing in the air? I have asked my mentor and he does not think there are any severe concerns besides some allergies such as sneezing (I have noticed my allergies worsening).

There is also no symbol indicating for a the use of respirators on the CNC machine itself. It only indicates safety goggles, gloves, and a helmet, all of which all employees wear.

I will be using a basic dust mask today to see if it helps with the allergies. Is a dust mask enough for this type of work? What other types of masks should I I consider?