Best gelich First: The air filter works impressively, so that dust allergies and all are sensitive to house dust spared in the apparatus of much that usually flies through the air while vacuuming. Whether that will remain even after prolonged use so must show the time. Even with the other Featuers can be satisfied. These are: -Light device -quiet -easy to use -kräftige cable rewind -Extensive nozzle range "on board" All this at a really good price. What more do you want?