Baby fly on top, it is really great. And cheap too. The nose piece is made of silicone and does not fit into the nostril but arises edge, which allows not to hurt the baby's nose. The suction force is made by itself, so we can adapt it if necessary. 2 bottle brushes for cleaning are a plus. Contrary to what everyone can believe, we manage the suction force, but in any case we swallow secretions. There 'is no filter on this baby fly but there is not no need for it is constructed so that secrete do not reach the suction hose of the parents. In short go for it