Commentary for Psalms 135:17

neither is there any breath in their mouth There is not even any breath in their mouth like an animal. Now, since they have no breath [in the mouth], he need not explain [that they do not have] the breath of the nose. This אף is vowelized with a “pattah,” whereas (115:6): “they have a nose (אף) but they do not smell,” is vowelized with a “kamatz.” (This is not found in all editions.)