Macwax
Member
Strange as it may seem, I have what is called an open heating system which means that I have no return ducts in my cellar. The cool air comes down the air returns and dumps into the cellar to be sucked directly into the heavily filtered furnace. For some reason, it seems to act like a giant filtering system in my darkroom and I have virtually no dust on my negs. Very little attention to the negative and bingo, a clean print. Go figure.
John MacKechnie
John MacKechnie