The outer filter, or most commonly known as the primary filter element helps to remove any impurities in the airflow that is coming into the absorption process.
The inner or secondary filter acts as an optionally available filtration during servicing of the primary filter. It generally fits inside the outer element. The component is of high-quality material and has been tested for its durability.
It can be used as a pre-filter for other demanding filtration systems, including extending the life of an expensive and high-efficiency filter. These types of filters are suitable for residential, commercial, and industrial purposes and use. Filters are also more economical and are considered an effective solution to industrial air filtration.
Specs
Efficiency rating: 99.97% against 0.3 micron oily aerosol particles.
Media: Synthetic fibre
Frame: Rigid plastic
Sold as single Filter
