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Industrial Centrifugal Fan
Tunnel Fan & Metro Fan
(Gas Heating) Make-up Air Unit
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Mixed Flow Fan
Axial Flow Fan
Inducing Fan
Kitchen Fume Extractor Fan
Cabinet Fans
Inline Centrifugal Fan
Roof Fan
Wall Mounted Fan
AHU FAN
INFINAIR motors
OEM Customization
Intelligent Control

Products

Doom-type Gravity Ventilator-VDR

● Installation: rooftop mounted
● Volume range: 279~15,682 m³/h
● Round hood, ventilation from four sides, air flow smoothly. 
● Hyperbola Venturi inlet: resistance reduced. 
● Integral bird screen: debris prevented. 
● Small size, light, easy installation. 
● Optional epoxy coating: 10 years outdoor warranty. 
● Watertight design: continuously use. 

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● Installation: rooftop mounted
● Volume range: 279~15,682 m3/h

Product features:

● Round hood, ventilation from four sides, air flow smoothly.
● Hyperbola Venturi inlet: resistance reduced.
● Integral bird screen: debris prevented.
● Small size, light, easy installation.
● Optional epoxy coating: 10 years outdoor warranty.
● Watertight design: continuously use.

Application

Typical application:
-- Industrial workshop gravity rooftop exhaust
-- Inlet/outlet of duct system
-- Outlet chamber of heat-producing appliance
-- Outlet for pressurized industrial building
-- Inlet for negative pressurized industrial building
-- Inlet of workstation make up air

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