CHARLOTTE, NC – Rosenberg USA is now offering a line of low-noise, high-power-density radial fans with free-running impellers for the ventilation of air and non-aggressive vapors and fumes.

Designated the KH Series, the fans feature a 100 percent speed controlled external rotor motor and new backward curved impellers made of waterproof aluminum. Designed for minimal maintenance, the compact fans are the easy-to-install choice in air handling units, hygienic systems, filter units in clean rooms and RLT units.

Rosenberg offers the fans with impeller diameters from 9.84 to 27.95 inches. The closed motor offers Class IP 44 protection against humidity, with maintenance-free sealed ball bearings. Air volume is easily adjustable using various pressure and temperature controls.

The Rosenberg family of companies employs more than 900 individuals in Germany, France and the U.S. Rosenberg USA is headquartered just outside Charlotte, N.C.

For more information, contact Rosenberg USA by phone at (704) 289-5423, fax (704) 283-7170 or e-mail