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Frequently Asked Questions

Do I need a prescription to undergo an examination at a medical sleep laboratory?

Yes, your healthcare professional has to prescribe an examination for you.

Why is a prescription necessary if I’m paying?

Section 136 of the Regulation respecting the application of the Act respecting medical laboratories, organ and tissue conservation and the disposal of human bodies provides that all work carried out by a medical biology laboratory must be carried out in response to a prescription signed by a professional empowered to sign such prescription under the Act governing the professional order to which he/she belongs.

Will my insurance reimburse me?

The costs for tests are reimbursed by most group insurance plans for medical expenses. We suggest you check your insurance contract because each plan is different.

How much does a test cost at Biron?

The total cost is established for each test based on which tests are specified in your prescription.

What is the wait time for getting my results?

Examination reports are sent directly to your healthcare professional and to your home within 10 to 15 business days following your test.

What is the time frame for getting an appointment?

The wait for an appointment is usually very short. This wait can vary depending on whether you want your test done at home or in our laboratory. The best way to find out about appointment wait times is to contact us.

Can Biron provide help me determine if I have a sleep disorder?

Yes, Biron offers you a screening test and accompanies you through the various steps leading to your diagnosis and, if necessary, your treatment.

Find answers with our online screening form.

My mask causes skin irritations; what might be the reason?

Masks are usually made of silicone, which is a hypoallergenic product. Possible causes of irritation can involve the fit of the harness (too tight or not tight enough), the fit of the mask (wrong size, wrong mask style for the patient) or the condition of the mask (silicone can absorb dirt that causes irritation over the long term).

How can I reduce nose irritation caused by constant air circulation?

The airflow that is constantly circulating at night, specifically under positive pressure, can cause irritation inside your nose. The humidifier remains the best solution for preventing this discomfort. You can also use distilled or demineralized water to improve your comfort, and Rhinaris™ gel or spray.

Is it easy to travel with my device?

Most devices can convert 100-240V, 50-60Hz current, enabling them to be used in many countries.

Some airlines allow CPAP devices to be used in flight, while others don’t. However, the humidifier should not be used in the plane.

Most devices automatically adjust to the altitude, while others have to be adjusted manually.

At customs, X-rays will not affect your device, but you may be asked to provide your medical prescription.

When camping, you can power your device with a marine battery, lithium or a converter/current generator (400 watts or more), but without using the humidifier.

During a stay in the hospital, we advise you bring your device and your mask because hospitals don’t always have a device available or a mask similar to the one you use.

Do I need to use distilled or demineralized water to fill the tank?

Using distilled or demineralized water helps prolong the life of the chamber and reduces mineral deposits. More importantly, it reduces airway irritation.

Why is there condensation in my mask and/or ventilation circuit?

Excess condensation can form in your mask or breathing circuit when the ambient temperature is low. To prevent condensation from forming, you can adjust the humidity settings knob to a lower value. You may also need to adjust the humidifier’s setting when going from one season to another. Using a breathing circuit cover can also help reduce the effects of condensation. Most CPAP devices now have heated hoses allowing you to adjust the temperature of your tubing and prevent condensation in the breathing circuit.

Who needs a face mask?

Like many users of positive pressure devices, you will likely experience oral leakage. A number of actions are possible for resolving this issue, with the use of a face mask being the last resort.

What is the tube holder for?

The tube holder supports the weight of the hose and positions it to ensure the mask does not move while you sleep.

Why should I use a tube holder?

If a CPAP device has been prescribed for you, using it daily will greatly contribute to improving your health and quality of life. However, many users encounter difficulties with their CPAP: red eyes, dry nose, strap marks on the face, or air leakage. Most of these problems can be related to the action of the hose that "pulls" on the mask and moves it. The tube holder resolves most of these problems by removing tension from the hose.

What are the features of the following systems?

CPP or CPAP (Continuous Positive Airway Pressure) device

Continuous positive pressure in the airways, at a fixed pressure of cmH20.

Auto-CPP or APAP (Automatic Positive Airway Pressure)

Variable continuous positive pressure in the airways, adjusting automatically by detecting airway obstructions. The pressure level can therefore vary during the night depending on the setting made in the device by the professional according to your prescription..

Volumetric ventilator (AVAPS)/bi-level (BiPAP or Bi-Level)/servo-ventilator (AutoSV)

Inhalation and exhalation pressures are controlled. Prescribed for complex apnea cases.


Expiratory pressure relief is a comfort feature available on almost all CPAP devices. It has been clinically shown that EPR improves the comfort of a CPP-based treatment by lowering the pressure with each exhalation. This ensures better tolerance for the treatment right from the beginning. This comfort setting also helps reduce mouth opening.