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3 independently controlled comfort settings. 3 speed settings, Digital, LED; control panel
Electronic thermostat; Patented locking extender screens
Window fan has been designed to fit double-hung windows with minimum openings of 65 cm wide x 20 cm high
Total extendable width is 93. 2 cm, includes built-in extender (17 cm), 2 pcs of slider safe extender panels (6 cm each), and window fan (65 cm). The slider safe extender panel can extend the width of the fan to 17-22 cm.