Accurate Mask Sizing for Your Metabolic Testing

Introduction: Welcome to our mask sizing guide, a crucial step in preparing for your metabolic testing. Proper mask fit is essential for accurate data collection during your test. Here, you can access and print our Mask Size Chart to determine your perfect mask fit.


Why is Accurate Mask Sizing Important?

  • Precision in Testing: A well-fitting mask ensures the accuracy of the data collected during your metabolic test.
  • Comfort: The right mask size enhances comfort, allowing you to focus on your performance.
  • Customization: While standard sizes (S, M, L) fit 90% of athletes, we recognize the need for personalized fitting to accommodate all.

How to Determine Your Mask Size:

  1. Download the Mask Size Chart: Access our chart below, designed by Hans Rudolph, Inc. Make sure to print it at the actual size for accurate measurement.
  2. Follow the Instructions: Use the chart to measure the distance from the deepest point of your nasal root depression (sellion) to the bottom of your chin. This will indicate your mask size.
  3. Select Your Size: Choose the size where your measurement falls. If between sizes, we recommend the smaller size for a snug fit.

Preparing for Your Test:

  • Print the Chart: Ensure your printer settings are correct. Set page scaling to ‘None’ and select ‘Auto-Rotate & Center’ if needed.
  • Measure Carefully: Relax your facial muscles and keep your jaw closed while measuring.
  • Inform Us of Your Size: Once you have determined your mask size, please inform us so we can prepare your mask for the test. If you require a non-standard size (XS or P), let us know in advance so we can order it for you.

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