Fluidic module (10, 32) which may be rotated about a center of rotation, comprising: a first chamber having a fluid inlet and a fluid outlet; a second compression chamber having a fluid inlet; a first fluid channel connected to the first chamber via the fluid inlet of the first chamber; and a second fluid channel connecting the fluid outlet of the first chamber to the fluid inlet of the second compression chamber, wherein due to rotation of the fluidic module (10, 32) a liquid may be centrifugally driven into the first chamber, into the second fluid channel and into the second compression chamber through the first fluid channel, and thereby a compressible medium may be entrapped and compressed within the second compression chamber, wherein at least one of the following features is met: the second fluid channel has a flow resistance for the liquid that is larger than that of the outlet channel (1, 2), and the fluid inlet of the second compression chamber is arranged, in relation to the center of rotation, radially further outward than is the fluid outlet of the first chamber, characterized in that the first chamber is a first compression chamber, and wherein, by lowering the rotary frequency and due to the resultant expansion of the compressible medium, liquid may be driven out of the second compression chamber and of the second fluid channel into the first compression chamber, out of the first compression chamber into an outlet channel (1, 2) and through said outlet channel (1, 2), a first chamber having a fluid inlet and a fluid outlet; a second compression chamber having a fluid inlet; a first fluid channel connected to the first chamber via the fluid inlet of the first chamber; and a second fluid channel connecting the fluid outlet of the first chamber to the fluid inlet of the second compression chamber, wherein due to rotation of the fluidic module (10, 32) a liquid may be centrifugally driven into the first chamber, into the second fluid channel and into the second compression chamber through the first fluid channel, and thereby a compressible medium may be entrapped and compressed within the second compression chamber, wherein at least one of the following features is met: the second fluid channel has a flow resistance for the liquid that is larger than that of the outlet channel (1, 2), and the fluid inlet of the second compression chamber is arranged, in relation to the center of rotation, radially further outward than is the fluid outlet of the first chamber, characterized in that the first chamber is a first compression chamber, and wherein, by lowering the rotary frequency and due to the resultant expansion of the compressible medium, liquid may be driven out of the second compression chamber and of the second fluid channel into the first compression chamber, out of the first compression chamber into an outlet channel (1, 2) and through said outlet channel (1, 2), the second fluid channel has a flow resistance for the liquid that is larger than that of the outlet channel (1, 2), and the fluid inlet of the second compression chamber is arranged, in relation to the center of rotation, radially further outward than is the fluid outlet of the first chamber, characterized in that the first chamber is a first compression chamber, and wherein, by lowering the rotary frequency and due to the resultant expansion of the compressible medium, liquid may be driven out of the second compression chamber and of the second fluid channel into the first compression chamber, out of the first compression chamber into an outlet channel (1, 2) and through said outlet channel (1, 2),