Final answer:
The number of medical equipment pieces that can be carried by PRMs varies by airline and regulatory policies. It is recommended to directly consult the airline or governing bodies for specific allowances.
Step-by-step explanation:
The question of how many pieces of medical equipment are allowed to be carried by Persons with Reduced Mobility (PRMs) does not have a one-size-fits-all answer, as it can vary depending on the airline and the specific rules governing the flight. Generally, it is best to check the policy of the respective airline or regulatory body to determine the allowed quantity of medical equipment. For example, the European Union has regulations that require airlines to accept at most two pieces of mobility equipment per person with disabilities or reduced mobility, which can include equipment like wheelchairs or portable medical devices. However, these rules can differ by country and airline, so it's crucial to verify the information on a case-by-case basis.