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DOP & Mask Fit Testing

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DOP Testing 

DOP (Dispersed Oil Particulate) testing is the method used to test the integrity of HEPA (High Efficiency Particulate Arrestor) Filters used in H Class vacuum cleaners and Negative pressure fan units.  A generator is used to produce gas particles which are passed through the filter, any particles which penetrate the filter are detected by a monitor on the exhaust side. This test ensures the HEPA filter is functioning correctly and the equipment is not releasing dangerous fibres into the air through leakage or damage.


Equipment fitted with a HEPA filter that is used for asbestos work must undergo regular six Monthly DOP testing.


DOP testing can be carried out at one of our four branches across the country.


Contact us for a quote or for any further information on DOP testing

Mask Fit Testing 

Ensure your staff are equipped with a correct fitting respirator.  It is a requirement for anyone working with asbestos to undergo an annual fit test for each type of respirator they wear.  Southern Insulation uses a Portacount Pro Respirator fit test machine to accurately fit all types of respirators.  We can provide fit testing for 3M, Sundstrom & Shigematsu respirators as well as many others on request. 


We can provide 3M Masks and filters at competitive rates.

Fittings can be booked at one of our four branches or alternatively we can come to you.  


Contact us to book a test or to discuss your needs

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