So Clean 2 Neutralizing Pre-Wash HC406 The is the replacement headgear

The is the replacement headgear for the ResMed AirFit N30 nasal mask

With premium gel technology

The updated headgear with arms increases stability

and a feminine fit in mind

The Diffuser Filter are items which help to make the mask extra quiet and lower air drafts

So Clean 2 Neutralizing Pre-Wash HC406 The is the replacement headgearThe Neutralizing Pre Wash is used for initial SoClean setup. It is important to use the Neutralizing Pre Wash to hand wash your PAP equipment before you connect your SoClean for the first time. The Pre Wash is a fragrance free, dye free soap that neutralizes any odors and scents on your PAP equipment.