Seeing the device labeled “4 person”, it is easy to understand that 4 users can enter at the same time. However, the rated number of people in a multi-person cabin cannot be determined only by the product name or the number of seats: whether there are still staff in the cabin, how everyone gets oxygen supply, and how access and emergency evacuation are organized will affect the actual available capacity.
First clarify who the “four people” include
Ask the supplier for a description of the rated load of the specific model and confirm the number of users: 4 or the maximum number of people in the cabin is four, including the staff. If there is no written explanation, do not calculate from the appearance size or the number of seats in the photo.
Next, verify the interior layout plan. The number of seats is only one of them, and it also depends on whether the personnel occupy the operating position, entrance or passage space after sitting. When cabin staff are required, please mark the position of the staff on the drawing and whether the position changes the number of users that can be accommodated.
Assign oxygen supply configurations to each location
The capacity description should match the oxygen supply configuration. Please ask the supplier to mark the oxygen supply interface corresponding to each use position one by one, and explain the configuration used by the staff in the cabin. If the proposal relies on a mask, interface or accessory, it should be required to appear in the configuration list and instructions for use of the model; the words “multi-person cabin” alone cannot confirm the configuration of each seat.
When comparing the two models, check the rated number of users, the position of the cabin staff and the interface layout in the same drawing or specification sheet. If these data are scattered in different documents, let the supplier confirm that they correspond to the same model and the same configuration.
Confirm entry, observation, and evacuation conditions
For users who require assisted access, have limited mobility, or may require in-cabin care, in addition to the seating layout, confirm the entrance net size, threshold, in-cabin turnaround space, and assist person standing. Walk-in only describes the method of entry and does not individually prove that the wheelchair or stretcher fit.
Ask the supplier to explain how personnel leave in an emergency, who is responsible for the operation, and whether the plan covers the actual load and staff. Don’t just accept a short response such as “can accommodate four people”; it needs to correspond to the specific layout, equipment description and evacuation arrangements. If the information does not specify the relevant conditions, it should be regarded as unconfirmed.
Filter models using complete deployment criteria
First determine the number of people using at the same time, and then include the staff who may be in the cabin into the space arrangement; then check the internal layout, oxygen supply interface, entrance and evacuation conditions item by item. It is also necessary to confirm whether the equipment can pass through the door, elevator and turning channel on site, and whether there is space required for control system, gas circuit, electrical, ventilation, fire fighting and maintenance after installation. The space and personnel arrangement of multi-person hardware cabin cannot be judged only according to the external dimensions of the cabin.
If it is used in residential or non-professional places, check whether the specific model description covers the use environment and who is responsible for operation, supervision and maintenance. The fact that the living space can accommodate equipment does not mean that the entire system has suitable deployment and management conditions.
The nominal capacity of the 4 person hyperbaric chamber is sufficient for actual screening only when the model document clearly states the rated number of people, personnel roles, internal layout and interface configuration, and the site conditions can support access, observation and evacuation. Please ask the supplier to write these contents into the official configuration file of the same model before placing an order.
