Do I have to resize my mask with the non-magnetic mask variant?

No, you do not need to if you are already using an existing AirFit™ F20 or AirFit™ F30i mask with magnets. All you need to do is convert to the respective non-magnetic variant of the same size. However, if you are a new user, visit our ResMed Sleep Coaches* where they can assist you on finding the right size fit. 

*ResMed Sleep Coaches are sales and customer service representatives who have received training in sleep health. They can give general information about sleep health, sleep disorders and products that may help improve your sleep. They are not qualified healthcare professionals and cannot provide medical advice. We recommend you continue to consult your GP.