Unlock your full potential. Take your respiratory training to the next level.
Threo Cardio Endurance Mask increases lung capacity and oxygen efficiency during exercise. Our unique resistance system challenges your lungs and airways so that you can train harder and longer. The adjustable strap ensures a secure and comfortable fit, making it suitable for various sports and fitness activities.
Adjustable intensity
Six resistance levels — progressively challenge your respiratory system for better athletic performance.


Dust protection
Threo mask protects from dust particles. Breathe in the fresh air and instantly boost your energy.
Lightweight
Enjoy the full range of motion. Concentrate on your sports performance without distractions or discomfort.

Taylor R. –
Great mask, comfortable fit, and perfect for jogging!
Jessie L. –
Love how it ups my game during training sessions. Matches my fitness level perfectly with various intensity settings. Dust protection is a great bonus!
Emily R. –
This mask has completely transformed my workouts. My lung capacity has noticeably increased, allowing me to push harder during cardio sessions. Plus, the adjustable levels provide a challenge without feeling overwhelming. It’s comfortable and stays in place, even during intense exercises. Highly recommend to any fitness enthusiast looking to improve endurance!
Jack T. –
Game changer for running sessions.
Vicky –
I’ve been using this mask during my daily runs, and it has made a noticeable difference in my performance. The adjustable resistance levels are fantastic, and the comfortable fit ensures it stays in place without irritation. Definitely a game-changer for my training!
Brian –
Great for enhancing cardio workouts. Comfortable fit.
Taylor –
Fits snugly and comfortably. It’s been a fantastic addition to my fitness gear. Noticed improved stamina, worth every penny.
Chris –
Transforms workouts; noticeable increase in endurance, a game-changer for my training routine. Highly recommend!
Sam –
A must-have for athletes. Excellent!
Alex –
Makes cardio fun!