Q: Can I change the delivery address of my order?
A: Please send your change address to our email service@resventglobal.com within 30 mins after purchasing, so that we can change address before cargo shipped out. If the cargo already shipped out from warehouse, we are sorry that can’t change anymore.

Q: How can I contact you?

A: Click on the Contact Us button in the main menu. send an email to service@resventglobal.com.

Q: What does CPAP stand for?

A: CPAP is the acronym for Continuous Positive Airway Pressure. CPAP therapy provides a constant flow of air at a set pressure into the airway to ensure that the airway stays open through the night.

Q: What is the difference between a CPAP, APAP and BiPAP?

A: CPAP – Continuous Positive Airway Pressure – Single fixed pressure for a continuous pressure flow.

APAP – Auto-Titrating Positive Airway Pressure – This device is set within a range of pressure (usually 4-20 cm H2O) and monitors changes in breathing then automatically adjusts pressure to compensate for the pauses in breath.

BiPAP – Bi-Level  Positive Airway Pressure – Two fixed pressures, one for inhalation, one for exhalation

Q: Which CPAP mask will work with my machine?

A: All CPAP masks and CPAP tubing are made to a standard size. Because of this, you can choose any mask to use with your CPAP or BiLevel machine. You should choose your CPAP mask based on previous good experiences with a mask, a doctor's recommendation based upon your sleep study, or suggestions from CPAP providers who have experience in this field, such as ourselves. Give us a call for questions or suggestions!

Q: Which type of mask should I choose?

A: This is a tough question, because it truly varies on an individual basis. There are traditional nasal masks (by far, the most popular with CPAP users), alternative nasal masksfull face masks (for those patients who have problems with mouth breathing or leaking from the mouth), nasal interface systems (such as nasal pillows systems), and oral masks (such as the Fisher & Paykel Oracle Oral). Each of these masks has benefits and drawbacks, and may work for some and not for others. For the best possible choice, stick with what has worked in the past. If you do well with nasal CPAP masks, stick with them. If this is your first mask purchase or you are unhappy with your current mask type, please give us a call and we will be happy to give you suggestions based on your individual therapy needs.

Q: What is the purpose of adding humidification to my machine?

A: Heated or passover humidification can definitely increase your comfort while completing your therapy. Humidification adds moisture to the air being blown into your airway, and without it, many patients find that they have significant drying out of their nostrils, mouths, and throats. Studies have shown that because patients' comfort levels are increased when humidification is added to therapy, their compliance with the therapy is also greatly increased as well. If you are purchasing your first CPAP or do not normally use humidification, we strongly recommend adding a humidifier to your machine.

Q: How Do I Clean My Tubing and Mask?

A: For home cleaning, mix one part vinegar and three parts warm water. Allow tubing and mask parts to soak for a few minutes. Rinse clean and allow to air dry. Don't like vinegar? We also offer Citrus mask cleaner to help with the job.

Q: How often should I change my CPAP supplies?

A: Many CPAP and BiPAP users don't realize that most of the supplies associated with sleep therapy are designed to be disposable. Masks, tubing, filters, and headgear are not designed to last extreme amounts of time, and using them past their recommended life span can actually jeopardize your CPAP therapy. Delicate silicone mask cushions can develop leaks, clogged filters can allow dust and pollen to be delivered into your airway, and over-stretched headgear can require extreme tightening, causing pressure point pain.

Below you will find our Recommended Replacement Schedule for CPAP and BiPAP Supplies, based on information from Medicare and private insurance companies.

Item (number)

Replacement Frequency


Every 3 months

CPAP Headgear

Every 3-6 months

CPAP Tubing

Every 3 months

Disposable Filter

2 new filters every month

Non-disposable Filters

2 new filters every 6 months

CPAP Chin strap

Every 6 months

Full Face Mask

Every 3 months

Oral CPAP Mask

Every 3 months

Humidifier Chamber

Every 6 months

CPAP Machine

Generally, every 3-5 years, or as necessary


Q: What happens if my machine is out of warranty and needs repairs?

A: Please contact us  to obtain a RMA (Return Merchandise Authorization) by send email service@resventglobal.com. Our returns department will gladly send your machine to the manufacture for a repair estimate. We will contact you with the estimate before any repairs are made. You will always have the choice to have your machine repaired or sent back to you.

Q: How often should I change the water in my humidifier?

A: Distiled water should always be used to prevent calcium build up in your water chamber and also to prevent sinus infections. Your water should be changed on a daily basis. Always rinse your humidifier chamber out before adding new water. Washing your humidifier on a weekly basis helps prevent bacterial build up.

Q: What is the difference between CPAP and BiPAP therapy?

A: CPAP therapy is used for patients who have been diagnosed with OSA (obstructive sleep apnea) and only require one continuous pressure. BiPAP therapy is normally used for patients who have more complexed forms of sleep disorders. BiPAP therapy allows for both inhalation and exhalation pressures to be set at different ranges. Your physician will always determine which therapy type you need.

Q: Do you sell new equipment direct from the manufacturer?

A: We only sell new equipment and supplies purchased directly through each manufacturer, and honor all warranties.


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