Home / Forums / Buying a melodica / Hohner Pro 36 on Ebay, seemingly perfect condition / Reply To: Hohner Pro 36 on Ebay, seemingly perfect condition Reply To: Hohner Pro 36 on Ebay, seemingly perfect condition August 29, 2015 at 8:23 pm #5863 Alan BrintonParticipant Well, if it’s perfectly air tight, you’ll get complete resistance (which won’t be the case with a Hohner Professional 36). If not, you can see how easy it is to blow through with the cap on and no keys depressed in comparison with the cap off.