What kind of fan do you use for a paint booth?

tube axial fan
The exhaust fan for a paint booth is a tube axial fan with propeller-style blades. Our fans all use aluminum blades that are best for fire safety because they don’t spark. Non-sparking fans are important for paint booths because most paints and other finishing products are flammable.

What CFM fan do I need for a paint booth?

One hundred feet per minute is the guideline for air movement in the booth area. Using the example from above, 80 square feet multiplied by 100 feet per minute equals 8,000 CFM. This is the size of the fan needed.

Do you need ventilation in a paint booth?

Paint booth air flow requirements OSHA: OSHA states that paint booths must be designed to filter out flammable contaminants and move air currents toward an exhaust for proper ventilation. Exhausted air should not be recycled back into the spray booth as this can cause contamination.

How many air changes do I need for a paint booth?

The more current codes require a minimum of 4 air exchanges per minute for wet or solvent-based paints. Powdercoat booths are required to have 60 lfm. Standard Tools uses 4 air exchanges to design our spray paint booths and uses the 100 lfm as a secondary reference.

How many CFM do I need for my shop ventilation?

As a general rule of thumb, you’ll need about 0.1 to 1 CFM per square foot of space for your application. The lower end (0.1 CFM per sqft) is for cleaner, less moist environments. The higher end (1 CFM per sqft) would apply to stuffy, hot and moist or dirty areas like garages, offices and warehouses.

Do exhaust fans need explosion proof?

Industrial fans usually handle different types of solids and gases, some of which are flammable. As such, you want to install an explosion proof fan if you operate in a dangerous area where flammable particles or gases are in the air or passing through ventilation systems. …

Should a paint booth be positive or negative pressure?

When there is more air being pushed in than sucked out, you create positive pressure, so a slight amount of air is pushed out when the booth door is open. Positive pressure creates a cleaner booth. Being able to control the airflow changes the way you paint.

Why do spray booths operate at negative pressure?

Negative pressure indicators 38 To prevent fine airborne paint mist escaping into the workplace, all spray booths and rooms should be run at a slightly lower air pressure than the surroundings so that any air leakage is inwards. This is known as running at ‘negative pressure’.