The IZF21/31 fans offer market-leading performance, functionality, size and accessories. Treat an area up to 2' x 8', neutralizing static as rapidly as 0.5s while achieving a ±5V balance. 8 emitters provide high ion output, and reverse polarity each time power is supplied, increasing durability. Controls include a power switch, 10-speed fan adjuster, and ion balance adjuster. 4 red/green LEDs
Model: 31 (4.4 m³/min), Input/Output: P (PNP, Input, Output), Power Supply Cable, AC Adapter: N (None), Bracket: B (w/Bracket), Automatic Cleaning Unit, Louver: Y (w/Automatic Cleaning Unit & Adjustable Louver), Filter: U (w/Filter)
Model: 31 (4.4 m³/min), Input/Output: P (PNP, Input, Output), Power Supply Cable, AC Adapter: N (None), Bracket: B (w/Bracket), Automatic Cleaning Unit, Louver: W (w/Adjustable Louver)
Model: 31 (4.4 m³/min), Input/Output: P (PNP, Input, Output), Power Supply Cable, AC Adapter: N (None), Bracket: B (w/Bracket), Automatic Cleaning Unit, Louver: S (w/Automatic Cleaning Unit), Filter: U (w/Filter)