Method and device for removing volatile organic substances from the contained air of closed habitats

The invention relates to a method for removing volatile organic substances from the contained air of closed habitats, comprising the following steps: a) conducting contained air through an adsorber bed (3) formed by a hydrophobic zeolite bed, b) closing the adsorber bed, c) extracting the air from the adsorber bed and feeding the air into the closed habitat (1), d) desorbing the volatile organic substances, in particular freons such as R134a and VOCs, from the adsorber bed (3) by heating the adsorber (3), e) leading the desorbed substances to an environment (13) outside the closed habitat, wherein water vapor, water, or CO