Air Treatment System

An air treatment system (10) for filtering volatile organic compounds, the air treatment system (10) comprising an air processing circuit (100) for receiving input air (110) and outputting filtered output air (120), the air processing circuit (100) comprising:

• a filter module (200) configured to remove volatile organic compounds;
• and
• a filter regeneration module (300) comprising one or more photocatalytic reactors, and
• the air processing circuit (100) configured to be selectively operatable in:
• an air purification mode (130), during which the air processing circuit (100) is configured:
• to accept the input air (110) and feed the input air (110) to the filter module (200), and
• to feed filtered air from the filter module (200) to provide the filtered output air (120);
• and
• a filter regeneration mode (140), during which the air processing circuit (100) is configured:
• not to accept the input air (110) and not to provide the filtered output air (120), and
• to couple the filter module (200) to the filter regeneration module (300), whereby the filter regeneration module (300) is operated to remove and/or reduce at least a part of accumulated volatile organic compounds from the filter module (200).