First, check that the filter is properly secured on the filter frame. If it is, make sure it’s clean. To replace it, click here: http://www.bissell.com/filter-for-dirt-container-for-3-in-1-stick-vacuums-2037423?productid=38B1
If the filter isn’t secured properly, replace it and make sure it’s properly attached to the filter frame.
Still need help? Please call us at 1-800-237-7691, Monday - Friday 8 a.m. to 10 p.m., Saturday 9 a.m. to 8 p.m., or Sunday 10 a.m. to 7 p.m. ET. A representative will be ready and waiting to help you out!