When I first turned the Shark Clean sense air purifier max on I was thinking I would hear it running.  I did not and love how quiet this little machine really is.  The filter is easy to use and change.  The control panel is very simple and works so well.  I love that it comes with an odor neutralizer technology.  It really helps guard against odors throughout my home. The odor neutralizer smells so good and releases a fresh scent that isn't over powering.  If you want something that really works, get this NOW!  It keeps my home free of harmful particles while also making my home smell fresh.  I love this purifier.