Bob DBF
Contributor
So you're concerned about a thing when you don't even know what it is. How can you worry when you can't even name this contaminant? The air is clean, it came from my garage, it's outside air. If motors gave off horrid fumes, so many folk would die in workshops etc.
OK.
I'm not concerned, because I'm not breathing that air. You are not because you do not want to know the standards for breathing quality air, or whether your compressor is providing it. It's your call, not mine.