https://www.camfil.com/en-gb/products/general-ventilation-filters/compact-filters_header-frame/opakfil/opakfil-es-_-21772
Opakfil ES | Camfil
A compact V-Bank air filter with very low total cost of ownership (TCO) and long lifetime. Available in ePM1 classes (F7-F9) with highest dust holding capacity.
escamfil