Further to the air brush topic

You've probably all seen this unit at your local Home Depot or Sears.  Its the Porter-Cable portable 6 gallon 90psi compressor.  I believe it would be ample for air brushing, but my question is if I choose to use it to paint garden furniture, drive a few nails from time to time will it be adequate?  I don't plan to use it to shingle a roof or paint a "real" car or anything of that nature.  Your opinions would be greatly appreciated.

Thank you

Robert

Gentlemen

Thank you for the very helpful information.  Now what would a dryer filter look like and what is meant by a oiler line.  I'll do some web searching but thought I'd post the additional questions here also.

Thanks

Robert

Gentlemen

I'm so glad I posted the question.  Your responses are very helpful to me.  It is all information I didn't previously understand.

Thank you.

Robert