LEED certified under indoor air quality VACUFLO exclusively offers a choice of Cyclonic Filtration Technologies True Cyclonic or Filtered Cyclonic and has nearly 50 years of proven central vacuum experience and innovative engineering. Cyclonic technologies remove 100% of ALL vacuumed dirt from a home with NO re-circulation of dirt, dust or allergens. Cyclonic technologies maintain maximum airflow and optimum cleaning power over time even when the dirt canister is full. Cyclonic filtration creates a powerful centrifugal force that sends 96- 98%% of all dirt vacuumed directly to the remote dirt canister. The remaining fine particles less than 5% of all vacuumed dirt are exhausted outside with True Cyclonic units, and when exterior venting is not possible or desired, Filtered Cyclonic units capture the remaining fine dust particles in the long lasting filter. Cyclonic technologies give homeowners what they want maximum vacuum power 100% of the time, removing 100% of all vacuumed dirt for a cleaner, healthier home.