Blower

A blower comprising:

• a case, a motor, a control unit, and a compression unit, wherein an chamber is formed within the case, and the motor, the control unit, and the compression unit are set within the chamber, wherein a first air inlet entrance and a second air inlet entrance that separately penetrate through a case side wall are defined on the case side walls of the case, the control unit is in fluid communication with outside air through the first air inlet entrance, the motor is in fluid communication with outside air through the second air inlet entrance, and the compression unit is configured to compress the air inside the chamber;
• the blower further comprising:
• a control fan being set on a side of the first air inlet entrance towards the control unit;
• a motor fan being configured to provide air cooling to the motor, the motor fan being set between the motor and the second air inlet entrance;
• and
• a gas filter being connected with the compression unit, wherein the gas filter is configured to suck the gas within the chamber and send the filtered gas to the compression unit to be compressed.