The polyurethane air filter element has been designed to provide maximum
dust collecting efficiency, non-restrictive air flow, and economical
element replacement, while maintaining a lightweight filter. The element
has been treated with a distinctive treatment called a wetted agent and
is approximately 98% efficient. The wetted agent is an accompaniment in
the efficient capturing of dust. In addition, the element has received a
fire retardant treatment. For the above reasons, replace the element
each 200 hours of use/12 months or when 50% covered with foreign
material. P/N BA-2205R. FAA Approved.