FOR BEST RESULTS: PRE-SOAK FILTER: To ACTIVATE COOLING, soak your filter under running cold water. FILL WITH PITCHER: USING ICE BOOST: Fill and Freeze Ice Boost pack prior to use. Place in water tank prior to filling to avoid overfilling. USING COOLING CONTROL: Control cooling output by pressing button. You can choose HIGH cooling mode or LOW cooling mode. See Product Guide for Care & Cleaning instructions. Place on flat surface & fill tank from a water pitcher.