Resema filters are P-labeled. P Mark is a quality according to SP Technical Research Institute which means that the filter meets the requirements of the SP’s certification rules (CR055) and that the filter has very good long-term performance in real operating environment.
P- labeling rules out basic requirements for the filter to keep the specified filter class throughout their lifetime, and particle removal ratio does not deteriorate drastically during the operating period . The filters are tested according to EN 779 for control of pressure drop data and filter class also long term performance of the filter in the actual operation is evaluated according to SP method 1937