I'm going to have to get over to you. So, don't This [bell] is the breath sample. >> Okay, I was I was just confused on what we're being brought. >> I got you. So, it's going to be brought to you. So, don't grab my phone or anything. I'm going to bring it to you. What you want to do is when it begins, you're going to put your lips around this and form like a seal, okay? Beforehand, you're going to take inhale as much as you can. And then, you're going to wrap your lips around Never had one, but uh yeah, so basically, you're just going to form a seal. No, it's okay. You're going to form a seal. All that air that you inhaled, one long steady breath. Don't try to blow the top off the machine. Just exhale into this. >> As much as I can. >> As much as you can. If you stop, don't just start back up again, or else it'll get in there, okay? >> Got you. >> Do you understand? Okay, I want you to take a deep breath and blow into the mouthpiece with one long continuous breath. Continue to blow until I tell you to stop. Do you understand these instructions? >> Yes, sir. >> Then, breathe in deep. Lips around there. Form that seal and blow. Keep going. Keep going.