Choose the right Ventilating Fan - Tips and Guides - KDK, fan, kdk fan, ventilating fan

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Choose the right Ventilating Fan

Step 1
Determine the room size: Length x Width x Height (in metres).
Example: 4 x 4 x 3 = 48m³

Step 2
Determine Air Change Per Hour (ACH) in your designated area. Refer to table below.
Example: I am choosing a ventilation fan for public toilet. Based on the table below, the figure is 20.

I: Type of Room			II: Necessary frequency of ventilation per hour
	I	II		I	II
Hotel	Dance Hall	8	Photo Studio	Darkroom	10
	Dining Hall	8	School	Laboratory	6
	Kitchen	15		Cooking room	15
	Hallway	5		Auditorium	6
	Toilet	5		Gymnasium	8
	Lavatory	10		Toilet	12
	Boiler room	20		Library	6
	Laundry	15		Classroom	6
Hospital Operating Room	Waiting room	10	Theater	Auditorium	6
	Clinic	6		Hallway	6
	Ward	6		Smoking room	12
	Bathroom	5		Toilet	10
	Office	6		Projection booth	20
	Restaurant	8		Workroom	6
	Kitchen	15		Telephone switch board room	6
	Gallery	5	Factory	Painting room	20
	Toilet	10		Dynamo room and substation	20
	Boiler room	10		Condenser room	15
	Laundry	15		Office	6
	Operating room	15	Restaurant & Snack Bar	Restaurant	6
	Disinfecting room	12	Library	Reading room	6
	Rooms for patients receiving medical treatment for diseases of respiratory organs	10	Office building	Office	6
Public Toilet		20		Waiting room	10
Home	Kitchen	15		Conference room	12
	Living room	6		Display room	10
				Toilet	10

Step 3
To calculate air flow required: Room size x Figure indicated in the table
Example: 48 x 20 = 960cmH

Step 4
Select the type of fan, such as wall or window-mounted; or non-ducted fan based on installation method, application and site requirement.
Example: A wall-mounted fan is selected based on site conditions.

Step 5
Selected model must be equal or higher than the calculated airflow of 960cmH
Example: 2 numbers of KDK model 20ALH are selected based on 50Hz parameter delivering 546cmH each. Hence total air flow is 1092cmH, well exceeding 960cmH.

If you have any question, please call Hotline: 08 3827 2783 - 102

Refer to link: https://kdk.com.vn/en/industrial-mount-fan_pt58