Puritan Bennett Sandman Duo Bi-level and Humidifier

SKU M-114823-US
Covidien (also known as Puritan Bennett), a leading supplier of sleep therapy equipment, recently released a bi-level machine with a fully-integrated heated humidifier, the fully data-capable... more details
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Covidien (also known as Puritan Bennett), a leading supplier of sleep therapy equipment, recently released a bi-level machine with a fully-integrated heated humidifier, the fully data-capable Sandman Duo. The Sandman Duo Bi-Level machine is a conveniently small and quiet device designed for a broad range of bi-level users, providing effective and proven bi-level therapy and heated humidification in an extremely small and compact body design.

The Puritan Bennett Sandman Duo Bi-Level is quiet, discreet and user-friendly for nightly use at home. At a mere 2.64 pounds, it is also lightweight, compact and robust enough for sleep apnea patients who need to take their therapy with them when they travel. Travel-friendly features include the ability to run on AC/DC or external battery power and an altitude compensation feature that automatically adjusts pressure up to 9,000 feet of elevation.

In addition to a water chamber that is easy to clean and refill and the water-resistant housing of the machine, the Sandman Duo Bi-Level and integrated heated humidifier has a unique “HumidControl Plus” feature. HumidControl works to ensure a consistent temperature difference between the water in the chamber and ambient air to minimize condensation in the tubing and to keep the humidification level constant throughout the night.

It is known that Bi-level users can receive large pressure variances depending on the combination of interface and device. The Sandman Duo Bi-Level device compensates for this variance with True Circuit Calibration and accurately delivers the prescribed pressure to virtually any interface and tubing combination at the end of the circuit, where accuracy counts. In addition, direct USB-to-computer connectivity, with optional Sandman therapy software, allows the clinician or user to analyze critical historical patient data and make changes to therapy as needed.

  • Wide pressure range (3 to 25 cm H20 - IPAP, 3 to 20 cm H20 - EPAP).
  • Automatically adjusting pressure throughout the night for optimum therapy levels at all times.
  • Fluid-resistant, front-facing display screen.
  • Automatic altitude and leak compensation.
  • Sandman therapy software available to download data from memory card.
  • Large backlit buttons dim automatically.
  • Patient comfort enhanced with patented FlowSens technology.
  • Inspiratory/expiratory sensitivity settings and rise time management (1-5 settings).
  • Auto calibration of entire user circuit, including compensating for length of tubing and type of mask.
  • Only one cord for Bi-level and heated humidifier.

For additional information on this product (user manuals, manufacturer's info, articles, and forum posts), please visit our Product Resources area in our CPAP Community.


  • 110 Voltage:YES
  • 220 Voltage:YES
  • Altitude Adjustment:Auto
  • Can Use A Battery?YES
  • Data Card:YES
  • Data Card Reading:Available with the optional Sandman Series software and USB memory stick reader
  • Dimensions:6.9" wide, 7.5" deep, 4.7" high
  • HCPCS Reimbursement Code:E0470 - Bi-level machine
    E0562 - Humidifier
  • Heated Humidifier:Integrated into bi-level machine
  • Included In Box:Bi-level machine, tubing, 2 sets of filters, integrated heated humidifier, humidifier chamber, travel bag, and user instructions
  • Integrated Battery:NO
  • Manufacturer:Puritan Bennett/Covidien
  • Optional Software:Sandman Series Software for Memory Card reading and analyzing
  • Other Information:Noise Level - 26 dB
  • Passover Humidifier:N/A
  • Prescription Required:YES
  • Pressure Range:4-25 cm/H2O
  • Ramp:0, 5, 10, 15, 20, 25, 30, 35, 40, 45 minute ramp times. Starting ramp pressure - 3 cm H20 to Expiratory pressure level (EPAP).
  • Warranty:2 year manufacturer's warranty
  • Weight:2.64 lbs. (1.20 kg) with humidifier;
  • Product Condition:NEW



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