- Refills for mains tap water with advanced microfiltration technology that eliminates more than 80 substances - It’s recommended to install a new refill every 3 months so as not to lose filtering efficiency. Why? - The refills are made of activated carbon, an organic material that can become a breeding ground for microorganisms, which over time can encourage bacteria to grow. These bacteria build up behind the filter and contaminate the water. In addition, the filtered limescale will eventually block the water flow depending on the hardness of the water. - What’s more, our refills are eco-friendly, because once used they can be recycled by following these steps: - Open the refill to separate the activated carbon from the plastic covering. - The plastic should be thrown in your plastic recycling bin and the activated carbon block in general waste.