Currently, there's no research on the safety of using the Luma device by pet owners with a history of cancer. However, based on existing findings related to treating pets with cancer, it's believed to be safe for the pet owner. If a pet owner has a history of cancer, it's recommended to avoid treating areas affected by cancer with typical dosages for pets. In the absence of conclusive research, another user should ideally treat the pet. However, current research suggests that it's safe for pet owners with a history of cancer to use the device.

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