I was a little sceptical about the claimed lack of odour, but I am amazed to say it's accurate. It has no more smell than tap water, and works faultlessly. So far I've tried it with oils and enamel washes, AK Interactive's True Metal product, and Humbrol enamels, and perfect is the best word to describe it. It's so impressive I'm going to buy some more while it's still in stock.