What does it mean for a device to differ from its purported quality?

When a device differs from its purported quality, it means that there are discrepancies between what is claimed about the device and its actual performance or safety. This situation does not inherently mean that the device is illegal or unsafe; it can still be permissible as long as the deviations from the expected quality are documented and communicated appropriately. This allows users and regulators to make informed choices regarding its use.

For instance, if a body art device has slight variations in its specifications but these have been reported and evaluated, it may still be allowed in practice. This approach acknowledges that not all differences indicate a failure to meet safety or compliance standards, thus placing importance on transparency and informed decision-making.