Virtual Spray Booth
Paint Overspray

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Paint over-spray is a mist produced when coatings are atomized through the nozzle of a spray gun. This mist can consist of solvent fumes, isocyanates, heavy metals such as lead and chrome from pigments, and other chemicals found in coating products. Exposure to these materials can result in nervous disorders, skin and eye irritation, respiratory sensitization, difficulty with breathing, and reduced lung function.

Furthermore, paint overspray can spoil a paint job, and prematurely clog paint booth filters, reducing your productivity and increasing your costs.
Effective control of worker exposure to paint overspray requires the proper selection of spray painting equipment, a properly designed and ventilated spray painting booth, and personal protective equipment. Formal training and maintenance programs will help ensure that all equipment operates properly. Three types of control are recommended by NIOSH:


HIGH VOLUME, LOW PRESSURE (HVLP) spray painting guns are recommended instead of conventional gravity or siphon-feed spray painting guns because HVLP guns cut paint overspray concentrations in half. HVLP and LVLP guns transfer paint more efficiently and can reduce paint usage.


DOWNDRAFT VENTILATION spray painting booths are recommended instead of Crossdraft or Semi-Downdraft Ventilation spray painting booths. Properly operated DOWNDRAFT booths produce lower concentrations of paint overspray compared to the other two types of booths. DOWNDRAFT booths produce a cleaner paint job that requires less buffing.


Properly used and maintained HVLP spray painting guns or LVLP and downdraft booths will greatly reduce paint overspray concentrations, but they will not completely eliminate overspray from the air workers breathe. Therefore, PERSONAL RESPIRATORY PROTECTIVE EQUIPMENT is strongly recommended and a RESPIRATORY PROTECTION PROGRAM that contains all elements required by provincial health and safety regulations or standards (such as worker evaluation, selection of appropriate air-purifying or supplied-air respirators, fit-testing, training, and maintenance) will be needed to fully protect workers from this hazard.

(Courtesy National Institute for Occupational Safety and Health)

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The Virtual Collision / Paint Shop is only a graphic representation of a conceptual service and repair facility. The Virtual Collision / Paint Shop only illustrates subjects which call for environmental program management and not as an illustration of good facility layout and design practices.

We do not guarantee the correctness or accuracy of the information, and will not be responsible for incorrect or inaccurate information, or any damage or loss suffered by any person as a result of reliance on such information.

The information presented relates to environmental programs of the Federal government. Regulations, and rulings, of local governments may apply in lieu of, or in addition to, the Federal rules, and should be reviewed before taking any action in reliance on this information.