Good morning,
I have a PA6280 sitting in the garage waiting to go into the CX-5. Purchased, along with a cabin filter, for very cheap on Rock Auto without knowing the efficiency rating. Finally got around to asking last week and received the following information.
"Yes, the filter is tested using ISO 5011 protocol. The efficiency rating is 99.4% (Initial) and 99.5% (Final). The dust holding capacity is >200 grams. The dust used for the test was Fine. - Chirag C., Product Engineer"
I have a PA6280 sitting in the garage waiting to go into the CX-5. Purchased, along with a cabin filter, for very cheap on Rock Auto without knowing the efficiency rating. Finally got around to asking last week and received the following information.
"Yes, the filter is tested using ISO 5011 protocol. The efficiency rating is 99.4% (Initial) and 99.5% (Final). The dust holding capacity is >200 grams. The dust used for the test was Fine. - Chirag C., Product Engineer"