Product-as-a-service, PaaS, means the customer purchases the desired result instead of the equipment or product itself, and the system is run in a subscription-based business model. In this model, the customer does not own the product; rather they pay for the product and the services included in the bundle. They return the product once the subscription period is over and the product owner can sanitize, inspect, and repair the product, if needed, for another rental cycle.