The Dial PEC-A-3500-1MC portable evaporative cooler with up to 3500 CFM airflow and 4-way louver control can cool an outdoor area up to 1000 sq.ft. It features Dial's classic, signature control panel with individual dial for 3-speed fan, pump and louver operation. 3-speed control. Made of polypropylene (PP), with UV protection, the unit is highly durable. Water for the 13.2 gallon reservoir is filled manually or via garden hose attachment with float valve auto shut-off when used outdoor. Ice packs are included for additional cooling effect and it comes with a cover for storage when not in used during the cooler months.