Descriptions
- 4′ (Width) x 12′ (Height) Air flow
- Streamline-casing which give super high out-let velocity
- Quiet sirocco fan system
- Quiet operation & energy efficiency
- Super slim front louver design
- Zoning function for separating zone
- Blocking out unpleasant dust, fumes, odors and insects
- “Invisible Door” with shut-out function for indoor heating / cooling retention efficiency
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