The Makita Cyclonic Vacuum Attachment is designed to expand the capacity to collect debris. Powerful cyclonic action captures up to 90% of dust particles before entering the main canister or dust bag, hence reduces the frequency of emptying the main canister or dust bag by up to 84%. This increases the longevity of the filter and offers the convenience of a one-touch release for easy disposal of debris. The Cyclonic attachment fits all Makita 18V LXT and 12V max CXT Compact Vacuums (sold separately), and helps extend the overall length of these Compact Vacuums.