What is difference between fan blower?

The key difference between a fan and a blower lies in their ability to generate airflow and the pressure at which they move air. Fans circulate large volumes of air with minimal pressure increase, while blowers move air against a moderate level of resistance, creating a higher pressure and directing airflow in a specific direction.

Here’s a more detailed breakdown:

Fans:

Function:
Primarily designed to circulate air, moving large volumes with a minimal increase in air pressure.
Pressure:
Generate low pressure, typically with a pressure ratio of 1:1.
Examples:
Household fans (standing fans, ceiling fans), ventilation fans, and the cooling fans in computers.
Applications:
Suitable for general cooling, ventilation, and air circulation in open spaces.

Blowers:

Function:
Move air against a moderate resistance, creating a higher pressure and directing the airflow in a specific direction.
Pressure:
Operate at a moderate pressure, with a pressure ratio ranging from 1:1.1 to 1:1.2.
Examples:
Furnace blowers, hair dryers, and some industrial applications requiring directional airflow.
Applications:
Suitable for applications where air needs to be moved against some resistance, like through ductwork or into specific areas.

In simpler terms: