Molecules will try to adopt the most stable conformation that minimizes strain. For cyclohexane, C 6 H 12, this would be the chair conformation. Letâs see why. If cyclohexane was planar, its structure would look like the picture to the left.
CPAP mask â There are many types of C-PAP masks. There are masks that just cover the nose (nasal cpap mask), and masks that cover just the mouth (oral masks), and of course, nasal-oral masks. There are also masks that are attached to oral appliance mouth devices.
Once you know what to do, you can sleep well with a CPAP machine. Get to Know Your Gear. When you have sleep apnea, you can stop breathing, briefly, up to 30 times or more an hour when your airways close or get blocked. CPAP, short for continuous positive airway pressure, pushes air into them to keep them open. The machine has a pump that controls the airflow, a tube that carries the air from the machine to you, and a mask that goes over your mouth, nose, or both.