How is the maximum time a tanning unit is allowed to run determined?

The maximum time a tanning unit is allowed to run is determined primarily by the exposure schedule. An exposure schedule is a guideline established based on factors such as the tanning unit's strength and the client's skin type. It takes into account how long a client can safely tan without overexposure, which helps in preventing skin damage or burns. This schedule is typically based on industry standards and regulatory recommendations to ensure client safety.

While manufacturers may provide recommendations and the type of lamp used can influence tanning results, they are not the primary factors in establishing the maximum run time. Client preferences are also important but ultimately should align with safe exposure practices as outlined in the exposure schedule to maintain skin health and safety.