Instructions - Fill the bottle with potable water and close the lid tightly. Gently press the button on the top of the lid. BLUE LIGHT turns ON, indicating the start of purification process. The BLUE LIGHT remains ON for the entire 2 minutes 30 seconds Purification process. DO NOT open the lid while BLUE LIGHT is ON. The Blue Light turns off, once the purification is complete, indicating the water is ready for consumption. One cycle of 2 mins 30 seconds gives you 99.9% pure water. For extra purification (99.9% purity), repeat the above procedure and purify the water twice. Battery and Charging - The BLUE LIGHT turns OFF within 5 secs after pressing the button signalling low-battery. For charging the battery, plug the USB in the charging slot and connect to power source like mobile charger, power bank, laptop, or PC. White light turns on and remains on the whole time the battery is being charged. Once the battery is full charged, RED LIGHT turns on indicating the battery is fully-charged. Remove the charger and the lid is ready for use. Caution - The bottle uses UV-C Technology for purification, which is not recommended for exposure to human body, especially eyes and skin. Press the ON button only after closing the lid tightly. DO NOT remove the lid while purification process is ongoing as it may be harmful for eyes and skin. DO NOT use the lid as torch or lamp. DO NOT expose the product to extreme temperatures. DO NOT use the bottle for anything other than water. DO NOT keep the bottle in deep freezer. DO NOT keep the bottle with UV lid in refrigerator. For refrigeration use plastic lid provided in the box. Cleaning - Use a wet cloth to clean and wipe off the lid. Use a dry cloth to dry out the lid or keep it in open air. Do not immerse the lid in water or place under running water to avoid any kind of lid-damage. Use mild soap and soft brush for cleaning the bottle. Do not use detergent, bleach, or cleanser containing chlorine. *Note: After 1 full charge, the lid will do 80-100 cycles of purification