Continuous positive airway pressure (CPAP) machines are used to maintain an open airway in patients diagnosed with obstructive sleep apnea. The machine functions by blowing pressurized air into the airway via mask at a setting determined by sleep study and prescribed by a physician.
Also the second largest impact structure on Earth, the 1.85 billion years old Sudbury crater in Canada, hosts world-class mineral deposits - in this case nickel-rich minerals that were melted and concentrated by the extreme heating caused by the impact.
Located on the rim of the dramatic and breathtaking Ngorongoro Crater, the lodge offers magnificent views over the worldâs largest intact and unflooded caldera. The crater is a place of rare natural wonders, from its miraculous terrain to the abundant fauna and flora it supports, and it is more than worthy of its status as a World Heritage Site.