A new ZARPAX bag can absorb about 40% of its content weight in water from the air. This has been verified by an independent laboratory. The maximum capacity itself will not decrease significantly after you start using it. However, when you recharge it at the recommended time and wattage some water will be retained inside the bag. This prevents the bag overheating in the microwave when the water has evaporated. We therefore strongly recommend not trying to remove every last droplet of water and sticking to the recommended recharging time. We usually compare it to the fuel reserve a car needs. It would not be safe to wait until the very moment the tank runs dry before refueling your vehicle. That is why some gasoline is always kept in reserve.
