The Disposable Standard Filters for S8 Series Vantage, Elite, Escape, Compact, and Tango is the standard filter that comes with your S8 Series or Tango CPAP Machine.

The S8 line of CPAP machines does not use reusable foam and disposable filters, like other machines. The filter is a fibrous material that wards off large particulate matter.

When replacing these with your old filters, the blue/yellow side faces OUT and the white side faces IN. These filters, depending on the lot when purchased, can be blue or yellow. The effectiveness or quality is the same regardless of the color.