“After my sleep study I was confused on what was the proper equipment to use but more importantly how to use it . Edgar with beach cities was so patient with my questions. He has a very easy way of guiding you step by step on what’s the best machine/ mask for your needs . He quickly guided me to the best settings on my resmed air sense11 model which he recommended me and I’m glad he did . Don’t hesitate to contact them you won’t regret it ! 👌🏼”- Kevin