To add a The Q-cup works with any drinking water. But the best water to use is with spring water, or filtered water with minerals. Q-cup works the best to generate rich hydrogen when there are minerals in the water. And good minerals are necessary for our body.

Q-cup can generate up to 1200 ppb (or 1.2 ppm) of molecular hydrogen depending on the water quality you are using. Use drinkable mineral water for the best result.

EDC (Electrode Decalcification Cleaning) is designed to sterilize bottle and de-calcified the electrode plate. You should run EDC once every charge (about every 20 times of uses) to help the bottle and electrode stay cleaned all the time.

When battery is almost out, you will see the LED light flashing in “red” when hydrogen water is generating. Charge Q-cup to full battery before using it again.

Q-cup can generate ORP anywhere between -400 to -600 depending on the water quality you are using. Use drinkable mineral water for the best result.

If you purchased a product from Harmony each product should be given a "Club Harmony Warranty Card" Only products returned with this card will have warranty. For return, please email us at support@harmony.hk includes proof of purchase and product serial number. Original shipping costs are not refunded and customers are responsible for return shipping costs.