- Revised blades of automatic ventilating fan invented first in the world.

- Super quiet and more powerful.

- No need for additional shutters.
- Shutter maintains good ventilation.
- Even if electric power is off, the blades close automatically with no need for manual control.
- Simple to operate: When turned on, the shutter opens to become the blades of the fan. When off,
   they automatically form a closed shutter. - It is easy to connect the unit to thermostats, gas detectors, etc.
- The blades close completely, forming a shield against insects and unwelcome odors.

- Living room, bathroom, office, restarant, office, library, smoking room, workshops,etc.                                                                                                                                             (Unit:mm) Model A B C D E F RAV-200R 294 264 36 55 91 198 RAV-250R 340 310 38 62 100 248

Model Impeller Size (mm) Phase.Volt (∮/V/Hz) Current (A) Poles (P) Input (W) Air Volume (㎥/h) Noise (dB) Weight (Kg) RAV-200R Ø200 1/220/60 0.173 4 27 1350 29 1.8 1/220/50 0.160 32 1220 RAV-250R Ø250 1/220/60 0.170 36 1060 30 2.0 1/220/50 0.22 32 1100

 * Revised Automatic Ventilating Fan Structure

                   Safety Grill + Frame with Auto Fan Assembly                                              Boss Cap + Auto Fan Assembly