1592953398000 1312632483000 term-48960 1616541183570 1312632543000 1616289944852 adlib fitz-online adlib-term-48960 540746b3-9e94-3813-8c7c-08ac670969e2 2 1 scope note Use for air-cleaning filters that employ a surface covered with a viscous oil or fluid, to which dirt particles and other airborne impurities cling as the air passes through. MEANS reference term-48959 adlib-term-48959 42db2309-e72a-35de-a440-f0304840ac93 viscous impingement filter V.PJ.AFU.ALO.AFU.ALO.ARI.AXC.ALO 1 code V.PJ.AFU.ALO.AFU.ALO.ARI.AXC.ALO 1 viscous impingement filters reference term-48957 adlib-term-48957 00b65362-0b2b-381f-82c5-393962336cd2 air filters viscous impingement filters term