What should the maximum timer interval error percentage be set to in tanning devices?

The maximum timer interval error percentage for tanning devices is set at 10 percent to ensure user safety and proper functionality. This standard is established to maintain adherence to time limits that minimize risks associated with overexposure to UV radiation, which can lead to skin damage and increase the risk of skin cancer. By setting the error percentage at this level, tanning facilities can provide a reliable experience for users, assuring them that they are within acceptable exposure limits. This balance aims to protect public health while allowing people to enjoy tanning services in a controlled manner.