Respiratory equipment: 4x steel bottles 300 bar, 6litres photo No. 1  4x Basic carrying devices PSS5000DS Photo Nr.2 ,3-6 4 Pulmonary automats PSS ESA Photo No. 8 4 Respirators with 4 transport boxes FPS 7000 ESA photo no.7 Age: 10/11 years   Maintenance has been done regularly, but the basic overhauls have expired: Bottle number: 08/2022   PA devices and automatic lungs: 09/2022 Masks: 09/2022   For the PA devices, lung automats and masks, the basic overhaul has to be carried out again. Use in case of fire: max. 5 Each bottle has a colour difference in the painting as shown in Figure 1. Each bottle in itself has minimal traces of use, which are not captured figuratively.