The work of the respirator warden is central and is what makes the deployment of the firefighters on the front line possible in the first place. Just like his comrades, he is also exposed to health risks in his work. When the equipment arrives after an operation, he has to know about the type of contamination before he can even begin his work. The head of operations gives him information about this (What burned?). In addition, he must take precautions to protect himself during his work: on the one hand from internal contamination (e.g. bacteria) and on the other hand from external contamination (e.g. burnt residues) of the respiratory protective equipment. Only then does he start cleaning and disinfecting the equipment. In doing so, he proceeds in 10 steps, which we will now take a closer look at.
Personal safety precautions
this term refers to all the precautions taken by BA equipment managers/technicians at work to protect them against contamination from internal sources (e.g. bacteria) and external sources (e.g. combustion by-products) on personal protective equipment. Information on the type of contamination can be obtained directly from the on-scene commander (e.g. what exactly burned in the fire?). This is the basis for choosing which personal safety precautions should be taken (more information is available (in German) at www.atemschutzlexikon.de).
THE WORKFLOW IN A RESPIRATORY PROTECTIVE EQUIPMENT WORKSHOP
1. RETURN TO BASE
- Delivery of contaminated full face masks and SCBA sets to dirty area
- contamination from external sources, e.g. soot and smoke from fire
- contamination inside full face masks and regulators caused by exhaled air, secretions, saliva and dead skin from SCBA wearer.
- Risk of contamination faced by equipment managers/technicians may require them to wear personal protective equipment depending on type of hazard
- Prepare documentation for each piece of equipment
- Used respiratory filters must be disposed of as hazardous waste or returned to their respective manufacturers
2. Preliminary cleaning
- Heavily soiled equipment should be pre-cleaned by washing it off with clean water in the dirty area
- Risk of contamination faced by equipment managers may require them to wear personal protective equipment depending on type of hazard
3. DISMANTLING
In dirty area, separated into full face masks and SCBAs; equipment managers may need to wear personal protective equipment depending on type of hazard; safety gloves required as a minimum:
- Full face masks
- Disassemble prior to washing in the machine. Follow manufacturer’s instructions (instructions on use and maintenance)
- Remove spectacle inserts and clean them separately
- Place the disassembled components into the appropriate small part baskets in the TopClean M to ensure they can be matched to the correct mask after washing
- SCBA regulator
- Detach the regulator’s medium pressure connector from the complete medium pressure line
- Follow instructions for use and mainte- nance stipulated by SCBA manufacturer after disassembly, then place the small parts in the small parts basket
- Place items in the basket insert in the correct positions - Connect the medium pressure hose to the ring line on the TopClean M basket insert. Set connection to medium pressure when inserting basket to prevent ingress of detergents, rinsing fluids and disinfectants
- SCBA harness with pneumatics assembly
- Seal pneumatics assembly (e.g. pressure regulator, manual connector for compressed air cylinder and safety valve) in accordance with manufacturer’s instructions
- Secure SCBA harness in basket
4. CLOSED-LOOP CLEANING + DISINFECTION
- Observe dirty/clean area separation:
- Dirty area: insert loaded basket
- Clean area: close TopClean M, start TopClean M running through selected programmes, open machine when finished and remove decontaminated breathing apparatus equipment and its small disassembled parts
- TopClean M operates automatically. Depending on the selected program, it runs through a “thorough clean – rinse – disinfect – rinse” cycle or a “thorough clean – disinfect – rinse” cycle at +60° C
- Clean, disinfect and rinse accessories such as mask cases
- Equipment manager should wear safety gloves to protect breathing apparatus equipment during handling
5. Drying
- Equipment manager should wear safety gloves to protect breathing apparatus equipment during handling
- Remove cleaned, disinfected and rinsed breathing apparatus equipment. Equipment does not need to drip-dry thanks to the effect of the residual +60° C heat
- Place BA equipment in drying cabinet while it is still warm from the residual heat
- Dry at maximum temperature of +60° C
6. Reassembling, replacing
- Equipment manager should wear safety gloves to protect breathing apparatus equipment during handling
- Replace SCBA components such as valve disks, exhalation valves, full face masks according to manufacturer’s instructions for use and maintenance and vfdb guideline 0840 (previously 0804)
- Assemble set according to manufacturer’s instructions for use and maintenance
7. MAINTENANCE, REPAIR, INSPECTION
- Equipment manager should wear safety gloves to protect breathing apparatus equipment during handling
- Repair as required, components that operate under high pressure such as pressure regulators should be repaired by experts (e.g. manufacturer)
- Reassemble sets according to manufacturer’s instructions for use and maintenance, guidelines on replacing parts, and vfdb guideline 0840 (previously 0804)
- After carrying out a proper inspection, seal full face masks and separate regulators in plastic bags to maintain hygiene, ensure air can enter bags (e.g. by cutting off corners)
- Regularly disinfect probes and work surfaces in BA equipment room, disinfect gel probes as per manufacturer’s instructions, keep regular documentation of completed disinfection processes
8. Filling of cylinders
- Fill breathing air cylinders at filling panel/rig (use of safety filling systems is preferable)
- Ensure breathing air meets quality standards stipulated in DIN EN 12021, check and document on a regular basis
- Filling speed for carbon composite compressed ai
9. Admin
Document all work carried out in BA equipment records, including when work was performed and by whom
10. Storage and issue of equipment
- Store SCBA sets according to manufacturer’s instructions for use and maintenance and vfdb guideline 0840 (previously 0804)
- Where possible, seal full face masks in plastic wrap (making sure air can still enter the bag) and store them in mask cases
- Storage conditions as per DIN 7716 and DIN ISO 8331 (Rubber products; requirements for storage, cleaning and maintenance)