In all our central vacuum units we install a protective valve for the motor. In case of an obstruction in the system the valve will open to avoid any extra effort for the motor. This model Works with a central vacuum bag with high filtration for the dust. With a very reduced size this model can be installed for example under the kitchen sink. With air flow of 195 m3/h, and total power of 1600 watt, installed with a motor of 1 turbines. Combines best featurs of being a easy to use, save and invest your valuable time, more silent, hygienic, and more importantly, very healthy for your family.