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Air filters for all types of Heating, Ventilation and Air Conditioning (HVAC) systems.  High purity products for Gas Turbines, Paint Spray Booths, cleanrooms, bio-safety and clean benches.

World leading spray booths by GFS in the USA

Current state-of-the-art surface finishing technologies call for super fine air filtration of the intake air in the spray booth. The most important criteria in this technology is to prevent paint damaging particles of 5 - 10 microns and larger from migrating downstream after collection in the air filter media, due to the vibration in the system.

The usual air-conditioning tests as described in the previous section, do not adequately test and evaluate the performance of the filter media under the real-life situation involving air turbulence on the upstream side of the filter, or the vibration caused by this turbulence and other factors. That is why the migration test was developed for ceiling media.

The spray booth filter migration test, as the name suggests, tests the air filter media for its efficiency in stopping and retaining paint damaging particles while under vibration. The method commonly used to ensure that these paint damaging particles do not migrate downstream due to this vibration is an adhesive in the media. This adhesive is integral to the performance of the media and will be discussed in more detail later.

The results of the migration test for ceiling media should be an R0 (or similar) rating. This means that less than 100 particles per square metre migrate downstream.

The importance of the migration test for ceiling media.

As has been highlighted in the previous sections, the migration test is a very important tool in assessing the quality of a final ceiling media for a paint spray booth. As such, a media with an RO rating is the only type of media that should be considered for this type of application.

The other media tests can only give an indication as to the arrestance and efficiency of the filter media, or the amount of dust that is stopped by the media, not the amount of dust that is retained by the media. This distinction may seem to be small, but it is important to try to make the customer understand this difference when considering the media performance.

See the Video Demonstation of the spray booth filter migration test

Read the explaination of the spray booth filter migration test video

If you have any questions or queries relating to any of these articles or movies or any technical questions relating to paint spray booth filters, Migration Test, air filters, spray booths, Peregrine Industries, Filtrair, Filtration Group or GFS or any product on this site, please contact us through our contacts page.