D.O.P. (dioctyplthalate oil) smoke challenge testing for vacuums and negative air machines. DOP testing is often required by contract and is recommended for projects where there may not be significant separation from the general public (such as school sites or hospitals). DOP testing verifies the integrity of the HEPA filter and body of the negative air unit or vacuum. We inspect, certify, and make minor repairs to all equipment.
Dispersed Oil Particulate (DOP) Testing of Filter Systems
Originally intended for the production testing of Absolute (HEPA) filters, this test - generally referred to as a DOP (Di-Octyl Phthalate) test, introduces an exceedingly dense cloud of sub-micronic particulate into the dirty side of the filter under test.