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.
This mask is the most non invasive of the CPAP mask and is very light weight. The mask simply seals around the nostril and is slightly larger than an oxygen cannula. More and more CPAP patients are trying these masks. Patient: I breathe through my mouth a lot during sleep so I would like to use the Full face mask.