Resvent iBreeze 20A Auto CPAP

How to set up the Resvent iBreeze 20A Auto CPAP

From the box to your first night. Keep the user guide that came with your machine nearby: if anything here differs from it, follow the guide.

  1. Unpack and check the parts

    Your box may include the iBreeze, a power adapter and power cord, an SD card, a 15 mm or 19 mm tube, a travel bag, the user manual and a mask. If anything is missing, contact your home care provider.

  2. Put the machine in the right place

    Set it on a firm, flat surface lower than where you sleep and away from heaters, vents and air conditioners. Keep the filter side clear of bedding and curtains, and do not put it on carpet or fabric.

    The humidifier must be level and below the mask so water cannot run toward you.

  3. Check the air filter

    Open the filter cotton cover and make sure the filter is in place. If your machine arrived without one installed, put it in before first use; the machine must never run without a filter.

  4. Fill the water tank

    Press the water tank lock and slide out the tank. Open the lid and fill it with room temperature distilled or purified water up to, but not over, the maximum fill line, then lock the lid and slide the tank back in.

    Do not touch the metal heater plate when the tank is out.

  5. Connect the tube and mask

    Slide the tube over the air outlet port, then attach your mask. Do not pull or stretch the tube. If you use a full face mask, it must have a safety (entrainment) valve.

  6. Plug in the power

    Plug the AC cord into the power adapter, the adapter into the machine, and the cord into the wall. The Resvent logo appears and the standby screen follows within about 5 seconds. Use only the Resvent power supply, and do not use an extension cord.

  7. Set your comfort options

    Turn the dial to the humidity setting and pick Auto or a level from 1 to 8. Open Comfort to set ramp, IPR, Auto Start, Auto Stop, tube type and mask type. Make sure Tube Type matches the tube you actually connected.

    Your therapy pressures are set by your provider. If you think they need to change, ask your prescribing clinician.

  8. Check your mask fit

    Put your mask on and run Mask Fit from the standby screen. It measures leak so you can adjust the mask and headgear before you fall asleep.

  9. Start your first night

    Press the Therapy On/Off key on top, or with Auto Start on, simply breathe through your mask. Adjust the mask until air stops leaking. Press the Ramp key if you want to start at a lower pressure.

    To stop, press Therapy On/Off again or, with Auto Stop on, take the mask off for more than 5 seconds.

After setup: settings worth knowing

  • Humidity: Sets how much moisture the heated humidifier adds. Options are Auto, Off and 1 to 8; the default is 3.
  • Preheat: Warms the humidifier in standby for up to 30 minutes so the air is already warm and moist when you start. It turns off on its own if the water is low.
  • Ramp pressure (P Ramp): Sets the lower pressure that ramp starts at, in 0.5 cm H2O steps up to your therapy pressure. The default is 4 cm H2O.
  • Ramp time: Sets how long the machine takes to rise from ramp pressure to your therapy pressure, 0 to 60 minutes in 5 minute steps. 0 turns ramp off; the default is 15 minutes.
  • IPR (Intelligent Pressure Release): Lowers pressure as you breathe out to make exhaling easier. Options are Off and 1 to 3; the default is 2.
  • Auto Start: Starts therapy automatically when the machine detects you breathing through the mask. On by default.
  • Auto Stop: Stops therapy if the mask is off for more than 5 seconds. On by default.
  • Tube type and mask type: Tells the machine whether you use a 15 mm or 19 mm tube and a full face, nasal or pillows mask, so it can compensate correctly.
  • Reminders: Pops up a reminder to replace your mask, filter, water tank or tube, or to schedule maintenance.

How to change each one →

Supplies that can help

Distilled water for CPAP humidifiers

Distilled water is what most CPAP humidifier chambers are meant to be filled with, because it leaves little or no mineral scale behind.

AmazonCPAP.comAffiliate linksHow to choose
Replacement CPAP air filters

The air inlet filter keeps dust and lint out of the machine and your airway; it is a cheap part that needs regular replacement.

AmazonCPAP.comAffiliate linksHow to choose
Heated CPAP tubing

Tubing with a built-in heating wire that keeps humidified air warm all the way to the mask, which is the main fix for rainout (water droplets …

AmazonCPAP.comAffiliate linksHow to choose
Humidifier water chamber (tub)

The removable water tank of a CPAP humidifier; it wears and needs replacing, especially if it cracks, clouds or leaks.

AmazonCPAP.comAffiliate linksHow to choose
CPAP chinstrap

A soft strap that supports the jaw to help keep the mouth closed, used mainly with nasal and nasal pillow masks to reduce mouth leaks.

AmazonCPAP.comAffiliate linksHow to choose
CPAP mask wipes

Pre-moistened wipes for a quick daily wipe of the mask cushion, mostly to remove skin oils between proper washes.

AmazonCPAP.comAffiliate linksHow to choose

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Sources

Last reviewed October 11, 2026. How we research · Report an error