Your lungs are
the only muscles
you've never trained
Six levels of adjustable resistance. Five minutes a day. Progressive overload, applied to the diaphragm and the muscles that drive every breath you take.
- 06Resistance levels
- 5 MinDaily session
- 2-WayInhale + exhale load
- 0Batteries, apps, refills
You didn't get out
of shape. You got
out of breath.
- A.The second flight
You're fine on the first. By the landing you're breathing through your mouth and pretending you aren't.
- B.Minute four
Legs still have it. Lungs already quit. Your pace is capped by your air, not your effort.
- C.Between sets
You need ninety seconds to stop panting. The guy next to you needs thirty.
- D.2 A.M.
Shallow, fast, high in the chest. You can't slow it down because you've never had a way to control it.
Breathing is
muscular. Muscle
responds to load.
Your diaphragm and intercostals contract roughly 20,000 times a day against almost no resistance. That's not training — that's idling. OxyBio puts measurable load in the airway so those muscles finally have something to work against.
- 01 — Load the airway
Turn the knurled ring. Air has to be pulled and pushed through a calibrated restriction instead of flowing free.
- 02 — Force adaptation
Resisted breathing recruits the deep respiratory muscles the way a loaded bar recruits the posterior chain. Under load, they adapt.
- 03 — Climb the ladder
Level one gets easy. You move to two. Six settings means the resistance keeps pace with you instead of becoming furniture.
Progressive overload.
For the diaphragm.
One dial.
Six settings.
No ceiling.
Entry setting
- Levels 01—02Learning the mechanics. Rib expansion, low-chest breathing, no strain.
- Levels 03—04Real working range. Respiratory muscle endurance and breath control under fatigue.
- Levels 05—06Athletic load. Short, hard sets for peak inspiratory strength.
Five minutes.
Three ways
to use it.
No app. No subscription. No 40-page manual. Pick the protocol that matches what you're training for and run it daily.
- Build30 breaths · 2× daily
Slow, maximal inhales against resistance. The base session — do this one first.
- Prime15 breaths · pre-effort
Before a run, lift, or match. Wakes up the diaphragm so the first mile isn't the worst one.
- Down-regulate3 min · nightly
Low setting, long resisted exhales. Slows the breath when your head won't.
Four things
a cheap copy
can't do.
- Calibrated ringResistance that actually indexes
The knurled barrel steps through six repeatable settings with a defined stop at each one — so you always know where you are and what you're progressing from.
- Two-way loadTrains the inhale and the exhale
Most trainers load one direction. Loading both builds the muscles that pull air in and the ones that control how it leaves — which is where breath control actually lives.
- Non-porous shellRinses clean in ten seconds
Sealed, smooth-walled, food-grade housing with no fabric, foam, or filter to hold moisture. Rinse under the tap, air dry, done. Nothing to replace.
- Zero dependencyNo batteries, apps, or refills
Nothing to charge, pair, update, or reorder. It works the day it arrives and the same way three years later. Fits a gym bag pocket or a glovebox.
You've trained
every muscle
but these.
Nobody gets a second set of lungs. But the muscles that move them respond to load like every other muscle in your body — and they've been waiting a long time for some.
- 5 MinTotal daily commitment
- 06Levels to climb through
- Day 1Works out of the box
Real sessions.
No studio.
Ask the
hard ones.
Is this just breathing hard into a piece of plastic?
No — and the difference is the entire point. Breathing hard with no resistance is cardio for muscles that are already easy to satisfy. The calibrated ring forces your diaphragm and intercostals to generate real pressure against a measured restriction, which is what drives adaptation.
Same reason curling air doesn't build biceps. Load is the variable.
How fast will I notice anything?
The first session you'll feel muscles working in your ribs and upper abdomen that you've never consciously felt — that's the signal it's loading correctly. Most people report level one feeling noticeably easier inside the first two weeks of daily use, which is your cue to move up.
Respiratory muscles adapt like any other muscle: consistently, not overnight. Five minutes daily beats twenty minutes on Sundays.
Is it hygienic? Can I share it?
The housing is sealed, non-porous, food-grade, and completely free of foam, fabric, or filters — there is nothing inside for moisture or residue to live in. Rinse under warm water after use and stand it upright to air dry. Weekly, wash with mild soap.
One user, one unit. It's a mouthpiece. Don't share it, the same way you don't share a toothbrush.
Will the resistance ring wear out or loosen?
The barrel is a threaded, machined-tolerance assembly rather than a friction clip, so it holds its setting through repeated adjustment and doesn't drift mid-session. No springs, membranes, or electronics — the parts that fail on cheaper trainers are parts this doesn't have.
If a unit arrives with a defect, we replace it outright.
Shipping and returns?
Orders are packed within 24 hours on business days and ship in plain, discreet packaging, with tracking emailed to you the moment it moves. Delivery typically lands in a matter of days domestically, a little longer internationally.
30 days to change your mind. Train with it, decide honestly, and if it isn't for you, start a return.
Who shouldn't use this?
OxyBio is a fitness training device, not a medical device, and it does not treat, cure, or diagnose any condition. If you have asthma, COPD, a recent chest or abdominal surgery, uncontrolled blood pressure, a history of collapsed lung, or you're pregnant, talk to your doctor before adding resisted breathing.
Never train through dizziness. Stop, breathe normally, and drop a level next session.
1,583 people
started at
level one.
Load. Adapt.
Repeat.
Six levels. Five minutes. One dial standing between the breath you have and the breath you could build.
OxyBio™ Breathing Trainer — Respiratory muscle training device · Fitness equipment, not a medical device · Does not diagnose, treat, or cure any condition · Consult a physician before use if you have a respiratory or cardiovascular condition · Single-user product