New Monthly CPAP Club N20 Airfit Mask Fit at Home Guide


We all know things feel better when they fit us correctly, including CPAP masks—the right fit makes all the difference! Not only is a well-fitting mask essential for general comfort when using a CPAP machine, but it also has a huge effect on whether or not the treatment is effective. To that end, it is vitally important to find a mask that literally fits your needs to get the comfort, treatment, and rest you want and deserve. But with so many CPAP masks to choose from, where does one start?

Enter the N20 AirFit Mask

If you are looking for a comfortable, perfect fit in a mask, look no further than the N20 AirFit. Boasting an incredible 99% fit range, it was designed to be a comfortable, secure fit on virtually every face. While CPAP mask fitting used to be something best left to professionals, the N20 AirFit allows you to measure and personalize your fit from the comfort of your very own home. Designed using input from hundreds of CPAP users and considering everyone’s unique facial features and sleep style, the N20 AirFit fits nearly everyone and has understandably become one of the most popular CPAP masks globally.

Fitting your N20 AirFit

There are two options for determining the correct mask size for your facial structure at home:

Option 1:
Measure your face with a ruler or tape measure (recommended method).

  1. Obtain a ruler or measuring tape at home. We recommend you use a rigid measuring tool for the most accurate results.
  2. Measure from the height of the bridge of your nose (usually just below your eye line) down to the indent in your chin (right below your bottom lip). Having a friend help may improve the accuracy of the measurement.
  3. Match your measurement with the corresponding mask size in the chart below.

Option 2:
Measure your face at home using a printed template.

If you don’t have a rigid measuring device at home, you can use a printable sizing template:

  1. Access the “AirFit F20 Fitting Template” PDF.
  2. Open the file and print (this can be in color or black and white).
  3. Cut the template out along the dotted line.
  4. Align the arrow on the sizing guide to the bridge of your nose, as pictured on the template.
  5. Select the right size for you based on the area of the guide just below your bottom lip, in the indent on your chin.

Why the N20 AirFit?

If comfort and effective treatment are your goals, the N20 AirFit is the mask for you. Its nearly universal fit and comfort, combined with the importance of selecting the right mask for treatment, make this mask the ideal choice. We here at Monthly CPAP Club love to keep things simple, and what could be easier than a quick measurement, picking your mask, and letting us handle the rest? So give it a try—we know you’re going to like it!


Answers to customer's frequently asked questions

Monthly CPAP Club is a new approach to delivering a regular and scheduled shipment of all your CPAP supplies for one low monthly cost.

We charge you a small monthly free and deliver a fresh CPAP mask, tubes, filters and cushions to your door every 3 months.

We work with the major manufacturers to provide a selection of the most popular CPAP masks, cushions, tubing, filters and other accessories.

You get one shipment with all the CPAP supplies you’ll need for the next three months and you just pay one low, monthly payment.

Monthly CPAP Club lets you know when it’s time to change your filters, clean your mask and tubing. Three months after your first order, we’ll let you know (via email) that it’s time to replace your CPAP supplies, and we will ship out a package with a replacement mask, tubing, and filters for your CPAP machine, all including in your monthly fee.

Every package allows you to choose your preferred style of CPAP mask and the brand, make and model you prefer. You have the choice of standard tubing or heated tubing. You have the option for extended tubing options with heated tubing. Every package also includes cushions for the mask and filters for your machine

We need to know which CPAP breathing machine you use so we can send you the correct filters. Filters are specific to machines. 

If you don’t see your CPAP breathing machine model listed, please contact us at  Please include the make and model of CPAP breathing machine you use. 

We do support many machines. The most popular machines are listed right now and more will be added as we grow.

In the mean time, let us know which machines you use so we get you the correct filters.

Monthly CPAP Club currently offers Resmed, Respironics, and Fisher & Paykel CPAP products. We can accommodate certain other brands when requested by email. Please let us know by emailing us at or submit a request online.

Our goal at Monthly CPAP Club is to offer all the necessary CPAP supplies for good sleep hygiene in simple, scheduled quarterly shipments.

We want the program to be even easier for the end user to afford with a monthly payment.

When you sign up for a package with Monthly CPAP Club, you will be charged the monthly package amount ranging from $30 and up, depending on your preferences.

We will ship out a package within 1 business day of your order with all the CPAP supplies you’ll need to properly treat your sleep apnea with clean and effective supplies.

The next scheduled shipment for your account will commence 3 months after your initial first shipment. We’ll send you an email your next delivery is on the way.

The best part about Monthly CPAP Club for those living with sleep apnea is that CPAP supplies are one less thing you’ll have to regularly order, schedule or pick up. We ship you the supplies you’ll need for the next three months and ship you another package in three months will all new and fresh CPAP supplies.

We do sell most of the popular and newest CPAP machines. Although we do not list many of the machines on our Monthly CPAP Club site, we can process orders for machines via email for existing subscribers and over the phone for new users.

Join The Club

Getting started is easy. Just click the button below. Choose your supplies, customize your plan and we’ll send your CPAP supplies straight to you! So take a load off and leave the rest to us!