However, hospitals may have rules and requirements that you need to fulfill in order to place a massage chair. For example, they may require you to provide information on the specifications, quality assurance, and maintenance of the massage chair. You may also be required to provide specifications for the use of the massage chairs and ensure that the use of the massage chairs will not be disruptive or a safety hazard to the daily operations of the hospital. Most importantly, you will need to obtain the hospital's written consent to ensure that you are not violating the hospital's rules and policies in placing the massage chairs.
Therefore, I recommend that you first contact the hospital's administration and discuss your plans and feasibility with them in detail. The hospital will evaluate your request and respond accordingly based on their policies and needs. Please note that different hospitals may have different policies and regulations, so it is best to do the relevant research and understanding before communicating with the hospital.