The Trachi-Naze +Plus multi-function filter cassettes are the heart of the Trachi-Naze +Plus System. They contain three filter layers which create a “closed” system, ensuring that all air is warmed, humidified and filtered, and restoring a functional airway resistance.
INSTRUCTIONS FOR USE:
Night Filter (Blue)
Provides normal airway resistance adding back almost all lost resistance. These filters would be normally worn at night and can be easily tolerated during sleep.
Day Filter (Green)
Provides a medium level of airway resistance allowing free passage of air for daytime use. The green (day) filter is comfortable during the day for normal activity.