ESVENT
As its name implied, this link will bring you the information regarding ventilation. You can learn lots about ventilation and you can even learn the meaning of some of the complex abbreviation here.
ESVENT TOOLS
This is the core of the website which comprises of a calculator for calculating the cfm (cube feet per minute), convertion of calculating unit and an overview of the list of standards and guidelines for the air change.
1. Local exhaust ventilation (LEV)
This method of ventilation is based on the principle of
capturing the contaminant at source before it spreads into the room air.
An LEV capture device or extract hood is used. LEV is the most effective
method of contaminant extraction and it is widely used in industrial ventilation
particularly where localized sources of hazardous contaminants are present.
Figure 2.10(a) and Figure 2.10(b)
Types Of Ventilation
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