We reuse cards that have been produced in excess and make them available to laboratories as kiloware. Laboratories use them in their daily work, for example to sort tablets.
Playing cards that are produced in excess are not thrown away immediately, but made available to laboratories, for example. On the one hand, this means we have less waste, and on the other, it offers medical facilities inexpensive and sustainable aids for their work.
They use the exhaust air from the heating system to recover heat and thus produce hot water.
The exhaust air produced by heating is not discharged outside unused. Instead, they use it to produce hot water for the sanitary facilities.