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What is the second reference? "gh" what is that? Bbippy (talk) 14:12, 23 May 2013 (UTC) Removed reference Bbippy (talk) 15:12, 25 June 2013 (UTC)
According to the Merriam-Webster dictonary, Coalesing is to Unite or grow together. The article and alot of air filter manufactures suggest that it is to seperate or filter oil/water from air. So which is it, Seperate or Unite? — Preceding unsigned comment added by 139.69.109.10 (talk) 16:09, 9 August 2013 (UTC)