Foam and felt pre-motor filters: every 3 months (mor often for smokers and pet owners) HEPA filter: Every 12 months (More often for smokers and pet owners)
Never Loses Suction is an advanced cyclonic technology that separates fine dirt from the air, preventing dirt from clogging the filters and keeping suction power strong over time. The Shark Rotator Professional Lift-Away vacuum maintains its suction power so you never lose cleaning power.
-Pull the handle toward you and release the floor nozzle to disengage the auto-off feature. -Turn the brush roll on by pressing the BRUSHROLL button."
The dust cup holds 1.3 dry quarts to the fill line and 3.1 dry quarts of real usable capacity. It has an easy, bottom-empty design for quick removal of debris, plus top empty access for removal of more stubborn debris.