A unique filtration process takes place within this filter.
The housing directs contaminated air downward through the filter media.
Oil separation and filtration takes place by means of condensation, inertial separation, impregnations and setting.
During November 2000, the Veritech filter was tested by the Deutsche Montan Technologie (DMT) organisation according to the VDI 2052 test. An analysis of the results shows that the efficiency of the Veritech filter is over 90% for all particle sizes above 5 microns. An analysis of these results according to the inverse law shows that overall grease recovery efficiency for the filter for all of the non-gaseous grease entering the filter Is over 90% at 100% rated airflow. This compare with just 54% for reference filter used in the test. The difference show that the reference filter passed 4.5 times as much grease into the duct as the Veritech.
The best-known test to establish performance of the filter as an effective grease and flame trap is the Underwriters' Laboratories test UL 1046. In this test a grease filter is loaded with grease before being subjected to a flame exposure test. The requirement of the test is that the filter should not pass any flames of longer than 457mm (18 inches). Continuous flames of shorter than this length is satisfactory.
During November 2000, DMT conducted a UL grease loading and flame test. In their report they state: "No flames of large size or major intensity were observed" downstream of the filter.
LPC STANDARD (LOSS PREVENTION COUNCIL - UK)
The Veritech cartridge filter obtained the highest fire retarding performance and efficiency performance in kitchen extraction according to new LPS 1263.