Shark Rotator, APEX, DuoClean, Powered Lift-Away HEPA Filter.

• Compatible with NV650, NV650W, NV651, NV651Q, NV652, NV750, NV750W, NV751, NV752, NV753, NV830, NV831, NV835, AX950, AX951, AX952, AZ1000W, AZ1002, AZ1002BRN.

• For optimal performance change filter when it becomes full of dirt and dust; about every 6 months.

• PERFECT FIT - Poor-fitting filters can cause dust and debris to escape from your vacuum cleaner. This replacement filter has an exact fit and multi-layer technology to prevent leakage.

• SUPERIOR FILTRATION - Keep your home free from irritants and airborne allergens. This HEPA vacuum filter is designed to trap harmful particles, such as pollen, pet dander, and dust mites.