Posted: 2 Apr '18

How to Select the Right Confined Space Blower for Your Work Environment


Hazardous conditions easily develop when your workers work in confined spaces because of poor air flow and ventilation. The careful placement of a confined space blower or a ventilator in enclosed areas creates a safe working environment for your employees by drastically improving air quality flow.

Conditions for your workers in confined spaces can be extremely dangerous and hazardous to their health. Confined space workers face several hazards including significant lack of oxygen, exposure to caustic fumes and gases, or the presence of ignitable and combustible particles in the atmosphere. Adding a confined space blower can significantly reduce these risks.

Selecting the Right Confined Space Blower

A confined space blower is specifically designed to bring in fresh air into such areas, which forces contaminated or poor air out.

Confined space blowers maintain safe atmospheric conditions and oxygen levels in such a way that, at best these areas are no longer hazardous to your workers’ health and safety, or at minimum are less hazardous.

There are several approved methods of ventilating your confined spaces. In many cases, the right equipment to use depends on the size of the area, the nature and source of the air, and the atmosphere of your working space.

1. Spaces with Combustible Materials in the Air

In situations where ignitable or combustible particles and materials characterize your work space's atmosphere, explosion proof ventilator fans should to be used. These unique ventilator fans are made using materials such as:

  • Polypropylene or aluminum blades and wheels
  • Special non-static plastics
  • Explosion and spark proof motors

2.Spaces with Hydrogen-Based Materials

Essentially, safe blowers and fans are used in confined spaces characterized by hydrogen-based hazardous materials, and electricity is not available. They are pneumatically or air driven; therefore, do not require electricity to run. The blowers are safely used to ventilate spaces without the fear of sparking.

3.Size of Your Space

The size of your confined space is used to determine the cubic feet per minute (CFM) delivery rate you require to ventilate. In turn, CFM determines the type of fan or blower you should use. To compute your minimum CFM delivery rate, you need to know your space’s size in cubic feet and the air changes per hour (ACH) number. Once you determine your CFM air exchange rating, install a confined space blower that either meets or exceeds it.

4. Power Source

Your space’s available power source will determine whether you should buy a gas, pneumatic, or electric blower.

For more information on how to select your confined space blower, as well as industry precautions and regulations, contact us today.