The AirFit F40 is the latest full face CPAP mask from ResMed, and supersedes their AirFit F30 model. But is the F40 a good mask for new CPAP users, and is it worth upgrading for those who already use and enjoy the F30? This comparison video dives into the differences between the models and tries to answer those questions. Remember, RespShop offers a 30-day guarantee on every mask purchased on https://respshop.com ResMed AirFit F40: https://bit.ly/4bZq8Dv ResMed AirFit F30: https://bit.ly/3yO7QXu As always, please Like and Subscribe! :) For more info, contact RespShop by Visiting: https://bit.ly/3gvtt65 Calling: 1 (866) 936-3754 Facebook: https://www.facebook.com/RespShop/ Twitter: https://twitter.com/RespShop Instagram: https://www.instagram.com/respshop/ #cpapmask #resmed #cpapreviews #respshop