Expiratory positive airway pressure (EPAP) devices create backpressure from a user’s own breath to keep airways open for obstructive sleep apnea patients. They do not require a power source and typically fit within the palm of a hand. This guide compares EPAP devices on specifications including sizes, materials, warranty, payor coverage, cleaning instructions, and supporting studies.

Company:AirAvant MedicalBRYGGS Medical LLCCPAPNEA Medical SupplyHupnos Inc
EPAP:Bongo RxULTepapOptipillows EPAP MaskHupnos Sleep Mask
FDA-Cleared Indications:mild to moderate OSAmild to moderate OSAsnoringnot evaluated by FDA
Description:FDA-cleared, clinically tested, prescription EPAP device for OSA. Soft nasal seals also create nasal dilation. Reusable. Requires no machine or power. Very small, simple to use and requires no assembly. Can be worn with or without headgear. User-friendly option for noncompliant CPAP patients or for travel. Comes with drying stand & travel case. Designed & made in the USA.The ULTepap is a reusable EPAP device that is comprised of a silicon body with nasal pillows that contain airflow cartridges that create back pressure. The nasal pillows, inspired by decades of comfort and fit, gently rest around the nostrils. The cartridges generate pressures equivalent to Provent, validated by numerous studies. It is held in place with CPAP headgear.Optipillows EPAP Mask allows users to adjust the resistance to fit their specific pressure requirements (1.5-14.5 cm H2O). Optipillows was designed by a sleep physician, is comfortable, quiet, reusable, optimal for travel, economical, and requires no prescription. Kits include the patented valve, adjustable headgear, and 3 sizes of nasal pillows. Replace annually.Hupnos is electronically controlled with an AI-powered snoring detector to titrate the EPAP pressure. App detects and records snoring. If user snores while on their back, vibrations cue to
roll over.
Available Through Prescription:YesYesNoNo
Available Over-the-Counter:NoNoYesYes
Sizes:S, M, L, XL included in starter kitS, M, L3 sizes of nasal pillows + adjustable headstrap included in kitone size fits all
Materials:silicone nasal seals with polycarbonate valve housingssilicon body with polycarbonate and silicon cartridgesnonallergenic plastic and siliconemedical silicone, microfiber cloth, memory foam, elastic polyurethane
Warranty (days):909030365
Payor Coverage:cash paycash payMSRP/MAP $109$99
How to Clean:Clean with mild soap and water. No disassembly required.The mask and headgear should be handwashed in warm water using a liquid dishwashing detergent.Clean with mild soap and water.Clean with mild soap and water.
Supporting Study:Clinically studied with patients using Bongo at home and in-lab PSGs with and without Bongo to demonstrate AHI reduction. Study reviewed by FDA and presented at SLEEP 2019.ULTepap was FDA-cleared using bench testing. A clinical trial is scheduled for the fourth quarter of 2021.Hakim TS, et al. EPAP devices Optipillows, Bongo Rx, and Theravent: Flow resistance and the pressures they generate. J Sleep Med Disord. 2021;7(1):1119.Kramer S. Does this device really stop snoring? 15 Feb 2019. Forbes.com.
Last updated Oct 2022. A version of this guide published in the October 2022 issue.

EPAP therapy Provent was discontinued in 2020. Information in this guide based on data submitted by EPAP marketers. Sleep Review strives for accuracy in all data but cannot be held responsible for claims made by marketers. All devices may not be included. Email sroy[at]medqor.com to be considered for the next update.