Shark Navigator blowing front filter out of the vacum cleaner.

Dear sir, This is the most likely cause of this problem: Be sure that the top tabs and the bottom lock clip are not damaged. (red arrows on photos of my own unit) These hold the filter in place. If damaged you may try several layers of super glue, or oder replacement part from shark.com parts for this model. good luck.

First thing to is call customer service at Shark. They great. I have problem. It a little while to remender. Check all tubes and hoses. Special bottom one from sweeper to vac. Take all the way off. I toke one off, looked ok but when I remove other end there it was.