Air Supply 6316220F 1.5 HP 240V Silencer Blower

Could you post a video of this blower in action to see how quiet it is? Thank you!

Is there any maintenance ?

is the blower supposed to be glued to the check valve? Is the check valve glued to the pipe?

does this blower use a solid state electronic controller? My old Anzen used carbon brushes in the motor and they harden and break very quickly.