Thanks for your desire to obtain one of our AirMaster XL Model A900! It is actually identical to the Silent Master S900 but it is upside down. You do need to always use a disposable bag in it so the real advantage is only emptying from the bottom. Consider the S900 though as it runs cooler...
Sorry I haven't posted for ages on this forum but I just have to chime in here a bit to add a few other ideas, not to argue for either side. Someone in the above string said it right that CFM and waterlift work in direct opposite of each other. And it is all dependent upon the opening size. At a...