Dyson cordless vacuums are know for their tremendous suction power. When our customer with a Dyson cordless vacuum that has low power and shuts off brought their vacuum in they were pretty  upset. We explained how we offer a free estimate and that we could do this while they waited, this seemed to calm them down a bit. We performed a free estimate on their Dyson dc44 cordless vacuum and determined that they NEVER cleaned their filter, they did not even know it existed. We cleaned their filer & cyclone assemble and also the cleaner head & brush bar, let it dry over night and today we have a working Dyson Vacuum and a VERY happy customer!