We recently remodeled our kitchen and our contractor removed our Waterdrop unit until we were ready to reinstall it. The unit was sitting in our very hot garage and it dawned on us that the filters and any water remaining inside the unit would be a harbor for growing bacteria. I called the customer service and was told to pull both filters and place them in the fridge. We went ahead and ordered a new filter to be safe. They were great with info and answered all my questions. New remodel is completed and every working just like it’s supposed to! Thanks!