NI recommends cleaning the air intake filter
once per month or as needed. Use NI part number 785791-01 to order replacement air
Complete the following steps to clean the air intake
Remove the four screws securing the 4U air inlet panel to the test rack.
Remove the filter media from the inlet panel.
Clean the air intake filter using warm water with a mild soap solution, then
air dry the filter to remove moisture.
After verifying that the filter is dry, replace the filter in the test rack
with the white side facing outwards.
Replace the 4U air inlet panel.