No there is only air here! You simply blow through the device as long as possible to train your lungs and increase your lung capacity!

📦 Our shipping times vary depending on the product, but usually is 7 to 15 days.

🚚 You'll receive emails with tracking links and shipping updates. You can also check our tracking page here.

🔄 If you want to setup an exchange or change your order in any where, submit an email describing your issue here.

To get answers for any of your other questions, submit one here.