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    3B Medical RESmart™ CPAP Machine with RESlex with Heated Humidifier

    Top Reviews

    "This machine is so quiet and was pre-programmed per my prescription. I am very happy with the machine and your company"

    December 10, 2015

    "Product came all set up ready to go. Very quiet and a nice machine for the money"

    August 1, 2017

    Product Overview

    Offering advanced features, the RESmart™ CPAP Machine with RESlex with Heated Humidifier is a cost effective option for treating Sleep Apnea. Increasing therapy comfort, RESlex™ Exhalation Relief eases the exhalation process making it easier to breathe out against the air flow. Access advanced data remotely with the built in iCode™ function and view the data from the last session of use on the screen. Included in this bundle is the integrated Heated Humidifier to further enhance therapy comfort.

    Manufactured by 3B Medical.

    Product Features

    RESmart CPAP Machine is a single pressure machine that delivers an air stream at a set pressure to maintain the airway during sleep.


    • RESlex Pressure Relief
    • iCode™ Remote Advanced Data
    • 365 Days of On Board Memory
    • Auto On-Off Feature
    • Auto Altitude Compensation
    • Power Off Alert
    • Leak Alert
    • Integrated Heated Humidifier Included
    • Easy Carry Handle

    RESlex Pressure Relief

    Pressure relief at the time of exhalation increases therapy comfort, especially for new users of Sleep Thearapy. RESlex reduces the air stream pressure during exhalation making it easier to breathe out against the flow. RESlex can be set to a level of 0, 1, 2, or 3 with 3 being the largest drop in pressure at exhalation. On the RESmart CPAP, the RESlex setting comes with a default of 0 or 'off'. The Important Tips tab of this page includes information on accessing the Patient Menu to set the RESlex level.

    Therapy Data and iCode

    Enter iCode here: iCode Report Site.

    RESmart makes sleep therapy advanced data available remotely. The RESmart iCodes are displayed in the patient menu. View a sample of the RESmart iCode Sample Report showing:

    • Day of Therapy Greater Than 4 Hours
    • % of Days with Therapy Greater Than 4 Hours
    • Average Daily Compliance
    • Average Pressure
    • Mean Pressure
    • Apnea-Hypopnea Index (AHI)
    • Snore Index (SNI)

    The RESmart holds 365 days of information in the on board memory. When the data storage is full the oldest data drops off to make room for the new information. iCodes are available for:

    • 1 Day
    • 7 Days
    • 30 Days
    • 90 Days
    • 182 Days
    • 365 Days

    The RESmart iCode Quick Reference Sheet is available for more information on iCode functions.

    Built In Auto Features

    The RESmart CPAP machine offers the following automatic features to make it easy to use and reliable. All alert features can be turned off in the set up menu if desired.

    • Auto On-Off begins the flow of air when breathing is sensed in the mask and turns off when the breathing into the mask stops.
    • Auto Altitude Compensation automatically adjusts between sea level and 8202 feet. The altitude can be manually set to 3 levels if desired- see the Specs tab for details. This may be beneficial for users living at very high altitudes.
    • Power Off Alert audible alert sounds if the power to the device is interrupted during use.
    • Auto Leak Alert audible alert sounds to notify the user of an open air circuit.

    Heated Humidifier

    The RESmart heated humidifier snaps onto the front of the device using the same power supply as the machine. Set the humidifier between 1 and 5 based on desired therapy humidification level. The RESmart chamber is designed to avoid flow of water back into the machine from the humidifier reducing the chance of water damage to the machine.


    This Product Includes...

    • RESmart CPAP Machine
    • Heated Humidifier for RESmart CPAP
    • 6 Ft Hose (22mm)
    • Carry Case
    • Power Cord
    • 2 Disposable Filters -1 Installed & 1 Extra
    • Manual

    Product Specifications

    Machine & Humidifier Warranty 2 years

    Pressure 4 to 20 cm H2O (.5 increments)

    Ramp Time 0 to 60 min. (5-min. increments)

    Starting Ramp Pressure 4 to set pressure

    Machine Dimensions 8.7"L x 7.6"W x 4.4"D

    Machine and Humidifier Dimensions 12.3"L x 7.6"W x 4.4"D

    Machine Weight 3 lbs 8.44 oz (1.6 kg)

    Machine & Humidifier Weight 5 lbs 4.66 oz (2.4 kg)

    Filter Disposable - Dual Filtration

    Sound level <30 dBA

    Operating Altitude Sea level to 8202 ft

    Manual Altitude Settings Can be used in addition to Auto Altitude Adjustment
    • 0 = less than 2460 ft
    • 1 = 2460 to 4921 ft
    • 2 = 4921 to 8202 ft

    Tubing Standard 6 Ft Hose, Flexible plastic, 22mm inner diameter

    Device Set-Up Control Panel Push Buttons

    Humidification Integrated Heated Humidifier or Pass-over Humidifier

    DC Power Use with Inverter

    Data Storage Capacity Display: 365 days summary data

    Temperature Range for Operation of Machine 41 to 86° F (5-30° C)

    Humidifier Temperature Output Settings 1 - 5 (104° to 149° F) always offers these services:

    • 8 am to 8 pm CST Toll Free Phone and Email Support
    • 24 hour access to our Support Forum
    • Learning Center for information on sleep apnea and cpap equipment
    • Consumer Purchasing Trends Reports
    • Warranty Services for all items purchased through
    • Insurance Compliant Invoices
    • Free Prescription Request System

    Important Tips

    User Manual:

    The user manuals included with this machine can be viewed and downloaded here: RESmart Auto Machine and RESmart Heated Humidifier.

    For information on settings, review the Quick Reference Sheet RESmart Auto & CPAP.

    For information on iCodes and reports view the RESmart iCode Quick Reference Sheet.

    RESmart machines use a standard, 22mm, non-heated hose. They are are not compatible with 15mm hoses.

    RESlex Setting: The default setting for RESlex is turned off with a setting zero. RESlex is set in the Patient Menu. To access the Patient Menu:

    • With the machine turned off, press and hold the Ramp button.
    • The "Heater" setting will appear in the window.
    • Step through the settings by pushing the "+" button. RESlex is the seventh setting.
    • To change the RESlex setting, press the Ramp button one time, on the display screen a square next to the setting number will flash indicating it is active.
    • Pressing the "+" and "-" buttons select the desired level of RESlex. 0=Off; 1= the least drop in pressure at the time of exhalation; 3= the most drop in pressure at the time of exhalation.
    • Press the Ramp button once to set the RESlex setting.
    • Step through the remaining 6 menu items by pressing the "+" button until reaching the word "SAVE"
    • Press the Ramp button to LOCK IN any changes made. The screen will display will return to the ready mode.
    • NOTE - If the settings are not locked in with SAVE the changes will not be in place when using the machine.

    DelayOff with Humidifier Usage: If a humidifier was used during the therapy session, the machine will continue blowing in a 'DelayOff' mode at a very low pressure to cool off the heating elements. This is normal operation for the RESmart line of machines. This feature can be changed in the Patient Menu as detailed above for RESlex. Look for the feature "DelayOff".

    When "Enable" is selected, a machine with humidifier will run at a low pressure to cool and dry the machine. When "Disable" is selected, a machine with a humidifier will turn off when the therapy session is ended.

    Filter Change: Remove the filter cover by depressing the tab on the bottom of the cover and pulling up on the flare at the bottom of the cover. Insert the filter with the smooth, flat side facing INTO the machine. The textured side of the filter will be showing when installed correctly. Snap the filter cover back in place. Never install a wet filter.

    Humidifier Chamber: The humidifier chamber is sealed and cannot be taken apart. It is recommended to fill and empty the chamber through the top port. Alternately, the silicone plug on top of the chamber can be removed to allow emptying. To replace the silicone plug, set the chamber on a hard, even surface, line up the tabs with the holes on the chamber and press firmly downward.

    Use with In-Line Bacteria Filter: Please note that an in-line bacteria filter will fit snugly onto the RESmart heated humidifier, but will not make a proper connection to the machine without humidifier. A FlexiTube Angle Adapter for CPAP and BiPAP Machines can be used to connect the in-line bacteria filter to the machine without humidifier.

    Manufacturer Warranty

    The RESmart™ CPAP machine comes with a 2 Year Manufacturer Warranty. will work with the manufacturer on your behalf if the machine needs repairs. Please follow these steps:

    • Contact us at or 1-800-356-5221 to receive an RMA (Return Merchandise Authorization) Number before returning the equipment
    • Include a note with the machine describing the issue you are experiencing, along with your full contact information to include a return shipping address and the RMA number provided to you
    • Ship only the defective items to at 13235 N Promenade Blvd Stafford, TX 77477
    • Do not return accessory items such as the carry bag, hose or power cords
    • Loaner Machines are available for rental during the warranty process
    • Email updates will be sent to keep you informed as the machine moves through the warranty process
    • will contact the manufacturer on your behalf and handle all shipping between us and the manufacturer
    • The repaired or replaced unit will be returned to you. Shipping charges may apply.

    Please note: The manufacturer warranty is voided by water damage or misuse of the machine.

    Power Options

    Freedom Travel Battery

    Weighing in at only 1.7 pounds, the Freedom Travel Battery can go almost anywhere, even off-the-grid. The Freedom Travel Battery is also certified by the FAA for in-flight use, meaning it's the perfect travel companion for long flights.

    PLEASE NOTE: The Freedom Travel Battery can only connect to the RESmart by using a 150 Watt Sine Wave DC to AC Power Inverter (sold separately). The inverter converts DC power to AC power, allowing the AC power cord to plug into the inverter, and run off DC power. It should be noted that using an inverter can impact total DC run times.

    Deep Cycle Batteries

    While doesn't sell Deep Cycle (Car and Boat) Batteries, it is possible to connect to one of these lead-acid batteries with the 150 Watt Sine Wave DC to AC Power Inverter mentioned above.

    Deep Cycle Batteries are available locally at most auto parts stores.

    CPAP Video & FAQ

    Frequently Asked Questions (FAQs)

    What is CPAP therapy?
    CPAP stands for Continuous Positive Airway Pressure. CPAP therapy is the most commonly recommended, and the most effective, treatment for obstructive sleep apnea.

    A CPAP machine provides air at a constant prescribed pressure. The air is delivered to the person through a tube and a CPAP mask. CPAP therapy provides a constant airflow which keeps the airway open so uninterrupted breathing is maintained during sleep. The air stream eliminates Sleep Apnea events and allows the person to get a restful sleep.

    The level of air pressure required to maintain your airway is determined during your sleep study. Your doctor will write a prescription for a CPAP machine set at that pressure.

    CPAP therapy is delivered through a nasal mask that seals around the nose, nasal pillows which seal at the nasal opening, or nasal prong masks that seal inside the nares. Full face masks are available for a person who breathes through both the nose and mouth. Many innovative and comfortable options are available and advances in the delivery of CPAP therapy are continually occurring.

    For instance: Some machines offer a comfort feature such as FLEX or EPR technology. It provides exhalation relief, a slight drop in pressure at the time of exhalation to help make therapy more natural. APAP, BiPAP and BiLevel machines offer various levels of pressure throughout the night.
    How can I compare different machines?
    We work very hard to provide many different ways for our customers to compare products. Here are the machine product guides we have created and maintain:
    • CPAP Machine Comparison Guide. This guide stacks up every CPAP machine we sell, feature by feature. If you don't know the meaning of a feature, click the question mark for a definition. The links below will take you to the most popular CPAPs, or all CPAP machines we sell.

      Compare Most Popular CPAP Machines

      Compare All CPAP Machines

    • Auto Adjusting Machine (APAP) Comparison Guide. This guide stacks up every APAP machine we sell, feature by feature. If you don't know the meaning of a feature, click the question mark for a definition. The links below will take you to the most popular APAPs, or all APAP machines we sell.

      Compare Most Popular APAP Machines

      Compare All APAP Machines

    • BiPAP, VPAP and BiLevel Comparison Guide. This guide stacks up every BiPAP machine we sell, feature by feature. If you don't know the meaning of a feature, click the question mark for a definition. The links below will take you to the most popular BiPAPs, or all BiPAP machines we sell.

      Compare Most Popular BiPAP Machines

      Compare All BiPAP Machines
    How do I choose the machine that is right for me?
    We provide our customers with many tools to make informed decisions about their machine purchases. Options include:
    What type of power does my CPAP need?
    Most CPAP, APAP and BiLevel machines today are designed to operate on both AC and DC voltage. In the United States, the AC current from a wall outlet is 110 volts. Overseas, the AC current is usually 220 or 240 volt. Most batteries produce 12 volt DC current.

    We include information about the power needs and capacities on the pages our products. Please see the "POWER" tab on any machine product page for this information. You can also see a summary of the voltage range and whether it is DC capable on our Compare Charts.

    Here is a video explaining differences in power cords and power supplies of various CPAP machines:

    What maintenance is required on machines?
    The only care a CPAP, APAP or BiPAP machine requires is to clean or change the filters at the air intake. This keeps the internal parts from accumulating dust. Fine paper filters should be changed out every 30 days, or when they appear soiled. Foam washable filters should be rinsed with clear running water once a week, allowed to air dry, and reinserted.

    Here are some other suggested actions to care for your machine:
    • Keep the area around your machine clean by removing any dust from the area to improve the air quality delivered to your machine and to you.
    • Keep the air intake of the machine unblocked. Curtains, bedding, and papers can easily block the air intake of your machine, reducing the airflow.
    • If a humidifier is used with your therapy, do not pick up the machine with the humidifier attached. With most machines it is easy to spill water from the humidifier chamber into the machine causing damage. Manufacturer warranties are voided by water damage to the machine. To avoid this, remove the chamber from the humidifier and then remove the humidifier from the machine rather than transporting them together.
    • If a humidifier is used, empty the water from the chamber every morning. Accidents happen. If a family pet or family member moves the machine and humidifier with water in the chamber it is more likely that water could be spilled into your machine. Water damage to a machine voids the manufacturer warranty.
    Are prescriptions required for mask, machine, humidifier, and EPAP purchases?

    Yes. Federal law requires we have a valid prescription on file before we ship your mask, machine, humidifier, or EPAP therapy, including Provent and Bongo RX. You will also need a prescription to purchase the Nightbalance POSA device.

    We provide many easy ways to get your prescription:

    • We can request your prescription for you! When you checkout, just let us know you would like us to request your prescription, or you can log into your account to have us request your prescription.
    • Fax your prescription to our toll-free fax number: 866.353.2727, or our international fax number: 713.541.7377
    • Email your prescription to
    • Upload your prescription in your account, under the Prescriptions Section
    • Ask your doctor to fill out our prescription form. We have both a standard prescription form and an EPAP prescription form.

    For more information on prescriptions, please see our Prescription Section of the Learning Center.

    How can I get help from a CPAP expert?

    • By Live Chat: Click on the Chat Now field in the lower right hand corner of the page. If after hours, click Leave a message to enter your question and we will get back in touch with you.
    • By Phone: 800.356.5221 (%WeekDayStart% - %WeekDayEnd% CST Mon-Fri; %WeekEndStart% - %WeekEndEnd% CST Sat)
    • Email Us:
    • By Fax: 866.353.2727
    • Could not find what you were looking for? Please send us your question. Question Submission Form

    What are the CPAP, BiPAP, Sleep Apnea, and Oxygen related HCPCS, CPT or billing codes?

    E1399 is Miscellaneous and is used for other CPAP and Oxygen items.
    Do all CPAPs use filters?
    Yes, all CPAPs use at least one filter that is usually a type of foam material and washable. Some CPAPs offer finer filtration with the addition of a disposable paper filter.

    Cleaning and changing filters is the only maintenance required for a CPAP machine.

    The filters are located at the back of the machine at the air intake.
    How often should I clean my filters?
    Washable foam filters should be cleaned as soon as they become discolored. Manufacturers recommend foam filters be rinsed weekly under clear running water and allowed to air dry before being reinstalled in the machine. If the machine is used in a very dusty environment, the foam filter may require more frequent cleaning.

    Disposable filters and bacteria filters are not intended to be cleaned but rather changed out, disposing of the used filter. Manufacturers recommend changing the disposable filter once a month, more frequently if used in a very dusty environment.
    What is an APAP Machine?
    An APAP (Automatic Positive Airway Pressure) machine automatically adjusts on a Breath by Breath basis to blow the Minimum Pressure needed to keep your airway open during sleep. This allows your machine to provide you with your ideal pressure nightly.

    APAPs tend to be more advanced than CPAPs in that they normally offer more therapy tracking information and more comfort features.

    Every APAP machine can be placed in a CPAP mode to blow one straight pressure like a CPAP. However, CPAP machines cannot automatically adjust pressure like an APAP. This DeVilbiss IntelliPAP AutoAdjust is an example of an APAP machine that comes with built-in Smart Code therapy tracking software.
    IntelliPAP AutoAdjust CPAP Machine

    Here are some of our available APAP Machines:

    DreamStation Auto CPAP Machine
    Z1 Auto Travel CPAP Machine
    XT Auto CPAP Machine
    + See More
    Why might I prefer an APAP machine?
    Some CPAP users find it more pleasant to breathe with an APAP than with CPAP. The pressure delivered by an APAP machine automatically changes as needed to deliver the minimal pressure required to maintain the airway. The pressure delivered by a CPAP machine is set to a single pressure, the highest necessary to keep the airway open as determined during the sleep study. This is the case even when the higher pressure is needed only a fraction of the time.
    What are compliance tracking machines?
    Compliance tracking machines only track the numbers of hours the machine is used. These machines do not track any advanced information such as AHI or leak rate.

    Compliance machines are basic machines which the manufacturers made to be able to track usage hours. Compliance tracking machines are a manufacturer response to Medicare requirements that mandate DME (Durable Medical Equipment) providers show the Medicare patient used the equipment for the required minimum number of hours set by Medicare. DME providers cannot continue to be paid by Medicare without this information.

    There is one billing code for all CPAP and APAP machines. Therefore a DME will be paid the same from Medicare or insurance whether they provide a patient with a more expensive machine that is data capable with more comfort features or a basic compliance tracking machine. Therefore, compliance tracking machines are the most common type of machine that is provided to patients through local DMEs.

    There is software created to show the compliance information from the machine, however does not recommend purchasing this software. This data will only tell you how many hours you actually used the machine. It will not tell you how effective your therapy is.
    What is ramp?
    The ramp button on a machine is a feature that allows for a gradual pressure build-up to your prescribed pressure. The feature is enjoyed by those with high pressures because it eases up to their pressure.
    What is exhalation relief?
    Exhalation relief is a comfort feature which reduces the air flow at the time of exhalation, making the breathing process more natural.

    The following are the different types of exhalation relief names by manufacturer.

    • Philips Respironics = C-Flex, C-Flex+, A-Flex and Bi-Flex
    • Resmed = EPR (Expiratory Pressure Relief)
    • 3B Medical = RESlex
    • Apex Medical = PVA (Pressure Variation Algorithm) Pressure Relief
    • Curative Medical = EUT (Expiratory Unloading Technology)
    • DeVilbiss = SmartFlex
    • Fisher & Paykel = SensAwake Technology
    • Human Design Medical = Z-Breathe
    • Somnetics = EZEX

    Here are some machines with an exhalation relief feature:

    Transcend Auto miniCPAP™ Machine with EZEX
    PR System One REMStar 60 Series Auto with Bluetooth
    AirSense™ 10 AutoSet CPAP Machine with HumidAir™ Heated Humidifier
    + See More
    Will my CPAP operate overseas?
    An adapter may be required to plug a US power cord into a wall outlet in a foreign country. sells an assortment pack of World Traveler Power Adapter Plugs, which allow CPAP machines to plug into different types of wall sockets found in different countries.
    All the models sell contain power converters that enable the machine to operate on any AC current from 100 to 240 volts without any adjustment.
    Visit the Learning Center

    Replacement Parts

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