What Is EWOT?
Exercise With Oxygen Therapy (EWOT) is a wellness practice: you breathe concentrated oxygen through a mask while you exercise, usually for about 15 minutes. People use it to get more out of short cardio sessions, from athletes and busy professionals to older adults who want to stay active.
Complete EWOT Systems, Ready to Use
Every Optimal Breathing EWOT system ships as a complete, ready-to-use kit. No sourcing parts separately, no compatibility guesswork. Each system includes an oxygen concentrator, our patented Turbo Mega-Flow Mask, a professional-grade oxygen reservoir bag, and all required accessories. Simply set up, strap in, and start your session.
Choose the Right System for Your Needs
We offer two EWOT systems designed for different budgets and use cases:
Economy EWOT System — Our most affordable entry point into Exercise With Oxygen Therapy, built for personal home use. Powered by our own O2E2 brand oxygen concentrator. Comes with a 1-year warranty. Choose between a 5 LPM or 10 LPM concentrator and a 500-liter or 900-liter reservoir bag depending on your session intensity and space.
Premium EWOT System — Built for serious home users and commercial settings alike. Powered by a Drive DeVilbiss oxygen concentrator and backed by a 3-year warranty on the machine, bag and mask. Ideal for gyms, wellness centers, and biohacking studios looking to offer EWOT sessions to members. Available in 5 LPM or 10 LPM concentrator options with 500-liter or 900-liter reservoir bag variants.
See the full side-by-side comparison in our EWOT buying guide.
What Sets Our EWOT Systems Apart
Patented Dual-Inlet Turbo Mega-Flow Mask
Our Turbo Mega-Flow Mask is patented (US Patent 11,305,079) and exclusive to Optimal Breathing. It has two inlets, so oxygen flows from the reservoir bag into the mask through two connector hoses instead of one. Built-in one-way valves let you breathe in from the bag and breathe out into the room.
Professional-Grade Oxygen Reservoir Bag
Our reservoir bags are made from BPA-free, phthalate-free, odor-free TPU. Each bag has a built-in pressure relief valve to prevent overfilling, needs no cleaning, and works with any stationary oxygen concentrator. Available in 500-liter and 900-liter capacities, mountable horizontally or vertically. Learn more in our reservoir bag guide.
Warranty and Quality Checks
Our Economy system comes with a 1-year warranty. Our Premium system comes with a 3-year warranty. Every system is checked before dispatch for damage, correct function and all components.
What People Use EWOT For
- Structured cardio sessions while breathing concentrated oxygen
- Short, time-efficient workouts of around 15 minutes
- Support for exercise performance: a 2019 systematic review of hyperoxic training found improved performance in healthy participants
EWOT is a wellness and performance practice, not a medical treatment. It is not intended to diagnose, treat, cure, or prevent any disease. If you use oxygen for a medical condition, talk to your doctor before trying EWOT.
Who Uses EWOT?
Athletes use it as part of their training. Busy professionals use it to fit a focused session into a short window. Older adults use it as part of staying active. Biohackers include it in their routines. Gym owners and wellness center operators use our Premium system to offer EWOT as a service to their clients.
Buy EWOT Systems With Confidence
All Optimal Breathing EWOT systems ship from the US, with free shipping on orders over $250 to the 48 contiguous states. Pay over time with Affirm at checkout. Our team is available to help you choose the right system — concentrator capacity, bag size, mask size — so your setup is right the first time. Have questions? Book a free EWOT consultation before you buy.
