This HEPA filter is designed to fit in the Tornado's Pac-Vac 6 Roam battery backpack vacuum (93016) and the electric counterpart(93012B). This filter effectively removes allergens from the air to keep the air in the environment cleaner, while containing finer dust particles that can affect asthma and allergy sufferers. We also offer other accessories for your Tornado Pac Vac like replaceable batteries and replacement bags to keep you productive and cleaning.