When taking a breath tests, make sure the FoodMarble logo is facing up towards the ceiling. Hold your AIRE straight so that your breath will travel through the device, rather than hitting the inside ceiling. 

Before the test, make sure that your lips and mouth are clean and dry. It's important not to let liquid or food particles into the mouthpiece. 

When you're ready to take the test, inhale deeply, hold your breath for 3 seconds and then seal your lips on the mouthpiece and exhale into AIRE for 5 seconds. You should blow with an intensity that's similar to cooling soup on a spoon. 

You need to exhale for 5 seconds per breath. The app will count the 5 seconds for you so you will know when to finish breathing out. 

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