This product is designed with safety in mind and must be used with caution. It is important not to direct the light source toward a person’s skin, particularly the eyes, to avoid potential harm. Direct contact with the tube should be avoided, and users are advised to wear sterile gloves before handling the device. Additionally, the quartz tube should be wiped with alcohol to maintain cleanliness. For any issues or concerns during use, please contact the manufacturer promptly for assistance.