Although it is not legal to purchase a continuous positive airway pressure machine without a valid prescription, online retailers such as Easy Breathe, Inc., Secondwind CPAP LLC and 1800CPAP.com all provide services to help patients renew outdated prescriptions and assist with physician authorization. However, it is possible to buy certain CPAP masks without a prescription, although these have a moderate amount of assembly required before they can be used.
CPAP therapy is a treatment for sleep apnea, a disorder in which patients sometimes have trouble breathing while they are sleeping, and it is often marked by loud snoring at night and interrupted breathing. The therapy consists of a small CPAP machine that steadily and consistently supplies nonstop airflow through a hose or mask. This allows the patient to receive oxygen while he sleeps, according to Mayo Clinic.
Many insurance companies pay for a CPAP machine, mask and any other necessary components of the therapy if a patient has a diagnosis of obstructive sleep apnea and a prescription for CPAP therapy. Patients typically must undergo a sleep study before receiving the diagnosis. After treatment with CPAP machines, patients often report feeling more rested upon waking and have more energy throughout the day.