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Ventilation fan selection guide

 

 

 

The current household ventilation fans in the market can be roughly divided into the following five categories:

1, louver type ventilation

2, window glass installation type ventilation fan (window type)

3, ceiling ventilation fan

4, free intake type ventilation fan (pipe type)

5, full duct type ventilation fan series

 

 

 

Before purchasing, you should follow the guidelines to determine the type of ventilation fan you should purchase:

1. Ceiling-type ventilating fans are available when there is a ceiling where the ventilator is to be installed and the ceiling is directly vented to the outside space.

2. When the ceiling is installed in the place where the ventilation fan is installed, and the pipe that is discharged to the outside is reserved above the ceiling, the duct type ventilation fan should be used to exhaust the air with its high wind pressure.

3. When it is necessary to exhaust to the outside through a pipe mounted on the ceiling, or when a large building is used to accelerate the gas flow rate in the pipe, a full-cavity type ventilating fan with concealed exhaust gas may be selected.

4. When directly installed on the hole in the wall, the indoor dirty air is exhausted to the outside to absorb the fresh air. The louver type ventilation fan should be used. The louver type ventilation fan belongs to the partition wall type ventilation fan in the installation mode.

5. When it is necessary to install on the glass doors and windows of the living room, shopping mall, hotel, office and entertainment places, the window type ventilation fan should be used.

 

 

 

How to install a ventilation fan:

When installing a ventilation fan, you can calculate the number of installations according to the air supply volume of this model. The calculation formula reference data is as follows

 

 

 

 

Installation place

 

Number of air changes required per hour (n)

 

 

 

 

Installation place

Number of air changes required per hour (n)

Hotel

restaurant

8

kitchen

15

hall

5

Toilet

5

laundry room

15

Residential

Residential

15

Toilet

10

Living room, bedroom

6

hospital

Waiting room

10

Clinic, ward

6

Operating room

5

school

Laboratory, courtroom, classroom

6

sports room

8

Toilet

12

office

office

6

meeting room

12

Cinema, screening room

Screening room

10

factory

office

6

photocopy room

20

Pavilion, bar

restaurant

6

kitchen

20