Vol.1 - Assembly and disassembly of the XFLO system

Vol.2 - Correct way to wear Athlete mask (three-point fixation)

Vol.3 - How to replace the droplet filter

Vol.4 - How to replace the nasal pressure strip

Vol.5 - How to assemble the silicone headband

Vol.6 - What should I do if my nostrils feel blocked?

Vol.7 - Nose side pressure strip comfort adjustment method (reduce pressure on the tip of the nose)

Vol.8 - What should I do if the eye-shaped buckle cannot hold the headband, and it cannot be tightened or even slips?