According to the WELL v2 standard, one of the requirements for providing a restorative space is to include signage or education materials that explain the purpose and intended use of the space. This helps to inform and encourage occupants to take advantage of the space and its benefits for their mental health and well-being. The other options are not required by the standard, although they may be beneficial as additional features.
References:
* Standard | WELL V2, Feature M07: Restorative Spaces, Part 1: Provide Restorative Space
* WELL AP Study Guide, Chapter 5: Mind, page 113