very fast shipping. They sent everything that they promised. The equipment has no on/off switch (the knob at minimum i think turns it off but there is no click) Noise level measured with an uncalibrated noise level meter: 10cm from the equipment = 51,1 db, 1m from the equpiment =37,3db. I can say that it is quite annoying for me, i cannot have it in the same room for long time. I cannot measure the flow but the pressure is very low, i cover the output with a finger and i feel no pressure in the finger