Cooling unit and electronic device

An electronic device comprising:

• an electronic component which produces heat while executing processes;
• and
• a cooling unit comprising:
• a heat absorbing section which absorbs the heat produced by the electronic component,
• a heat radiating section which defines a ventilation area and radiates the heat, which is transferred from the heat absorbing section, into air passing through the ventilation area,
• a fan having a blowing opening, and blowing air toward the ventilation area from the blowing opening while allowing the air to pass by a predetermined element,
• a filter which is detachably installed between the blowing opening and the ventilation area to remove foreign substances present in the air blown to the ventilation area from the blowing opening, and
• a filter fixing section which is integral with the filter and extended astride the element, while allowing the filter to be removably fixed.