Whilst similar to PAP devices in objective, an EPAP device will not involve electrical power or batteries to work. Sometimes Health professionals prescribe a bilevel constructive airway tension (BiPAP or BPAP) machine when a person with sleep apnea can't tolerate CPAP. The BiPAP device operates similarly to the CPAP equipment, https://allhealthmarket.com/product/fitness-22/posture-trainer/posture-corrector/nose-corrector/mental-silicone-nose-up-lifting-shaping-clip-bridge-nose-corrector-beauty-massager-clip-no-pain-nose-shaper-2u0124/