Answer: Please note: THERE ARE TWO TYPES OF FILTERS THAT FIT THE VIOS COMPRESSOR.
If your filter is open only on one end, press the new filter into cap with the open end visible. If your filter is open on both ends, press either end of the filter into the cap. Place the cap and filter back into the front of your Vios. Use the coin to tighten by turning the cover clockwise.
Medical Supplies Club Customer Care
Store answer
Helpful?