VOC adsorption-desorption apparatus for volatile organic compound condensing system

A VOC adsorption-desorption apparatus for volatile organic compound condensing system comprising:

• an upper plate having a circular hole formed in the center of a circular plate;
• a lower plate having a diameter smaller than the outer diameter of the upper plate but larger than the diameter of the hole;
• a filter installed between the upper plate and the lower plate and around a through hole being extended from the hole of the upper plate toward the lower plate;
• and
• a filter protection net formed in the shape of a net and being extended from an outer circumference of the upper plate to an outer circumference of the lower plate to surround the filter,
• wherein a diameter of the through hole is maintained the same from the upper plate to the lower plate, and
• wherein a thickness of the filter between the through hole and the filter protection net decreases as it travels from the upper plate to the lower plate.