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V.AIR 4X

V.AIR 4X

V.AIR 4X™ — designed for athletes looking to push their limits. It adds resistance to your breathing, simulating altitude training so you can build endurance, improve your performance, and train harder.

 (4.6/5) From +899 Athletes
$20.44
$25.57 $20.44
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Color: Negro
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V.AIR 4X

V.AIR 4X

 4.5 out of 5 stars
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EASY RETURN

You have 30 days to return your purchase without complications.

Clients who improved their health

THE SCIENCE OF EXTREME PERFORMANCE

IMPROVE YOUR ENDURANCE IN JUST 6 WEEKS

Test Group — V.AIR 4X Breathing Trainer

95%

Reported smoother breathing and improved oxygen control during intense workouts with V.AIR 4X , simulating high-demand conditions.

91%

He noticed increased endurance and reduced fatigue—staying strong and focused during extended training sessions.

87%


He reported faster recovery between high-intensity sets due to improved oxygen efficiency.


Results based on a 6-week program where athletes and fitness enthusiasts trained with V.AIR 4X 4 times per week.

Breathing control exercises, oxygen efficiency indices, and simulations of prolonged training sessions were measured to evaluate endurance and recovery between sets.

 
 

Frequently Asked Questions (FAQ)

What exactly is V.AIR 4X and how does it work?

V.AIR 4X trains your respiratory muscles and improves your lung capacity, helping you maintain peak performance during training and matches.

How is it different from other breathing tools?

Unlike conventional devices, V.AIR 4X offers adjustable resistance and targeted workouts to increase endurance, recovery and explosiveness.

Is it easy to use?

Yes, it's intuitive and safe for any level of athlete. Just adjust the resistance and follow your training plan.

Do I need to be in shape to start?

No, V.AIR 4X is designed to adapt to your level. You can start slowly and gradually increase the intensity.

Will it really help me perform better?

Yes. Better breathing means greater endurance, faster recovery between efforts, and consistent performance throughout a match or training session.

How does the 30-day satisfaction guarantee work?

Try V.AIR 4X for 30 days in training and real-life matches. If you're not satisfied, send us your order number and we'll refund you. With most users experiencing improvements from the first use, we're confident you'll notice the difference.

 
 

V.AIR 4X

✅Maintain high intensity throughout the match without letting up. ✅Faster recovery between sprints, tackles, and explosive actions. ✅Outperform your rivals with greater lung capacity and endurance. ✅Maintain decision-making and focus even in overtime. ✅Unlock explosiveness on game days by training breathing under resistance.
VS
Without resistance
❌Energy drops after 60–70 minutes, decreasing the impact on the match. ❌Slower recovery between sprints and repeated efforts. ❌Difficulty maintaining the intensity of pressure at the end of the game. ❌Decision-making and reactions decrease with fatigue during overtime. ❌The respiratory muscles that enhance performance are not developed.

Join over 899 people who improved their health

  • Ideal for athletes

    It has given me an advantage in my matches.

    Jonas B.

  • More controlled breathing

    It helped me a lot to improve my boxing sessions.

    Alejandro T.

  • “It really helps”

    I thought it would be difficult to adapt, but after a few days my stamina improved a lot.

    Thomas W.

  • I was afraid to buy online

    But it arrived quickly and in perfect condition, now I train more confidently.

    Eric K.

  • More resistance, less fatigue

    I'm no longer behind in training.

    Fernando R.

  • I didn't expect it

    The change in my endurance was dramatic; within two weeks, I was no longer short of breath during training.

    Carlos M.

  • I totally recommend it

    It's a challenge at first, but that's exactly what makes it effective.

    Gabriel N.

  • My breathing changed a lot

    Deeper, more controlled, less fatigue.

    Paula G.

  • Better than I thought

    I thought it would be uncomfortable, but it actually fits very well and feels professional.

    Julia R.

  • Worth every penny

    I always used to get tired when running, now I finish with energy.

    Andreas K.

  • Fast results

    In less than a month I noticed that my breathing is deeper and more controlled.

    Samantha L.

  • Overcame my doubts

    I thought it wouldn't work, but it helped me improve my lung capacity much more than I expected.

    Luis H.

  • Great training tool

    My coach noticed the difference in my stamina.

    Patrick D.

  • Shipping was faster than I expected

    It arrived in perfect condition and with clear instructions.

    Elena V.

  • Hard at first, but effective

    It's hard at first, but after a few days it feels natural and powerful.

    Maximilian S.

  • I noticed the difference in the gym

    I don't get as agitated when doing intense cardio anymore.

    Adrian P.

  • Renewed confidence

    Now I dare to train harder without fear of running out of breath.

    Hannah B.

  • Very comfortable to use

    I use it almost daily and it doesn't bother me at all.

    David G.

  • I was surprised at how light it is.

    It doesn't get in the way and can be taken anywhere.

    Olivia W.

  • It shows in the performance

    After a few weeks, my stamina increased quite a bit.

    Mateo C.

  • I was afraid it wouldn't work

    The truth is that it left me impressed, you can feel the change.

    Nina S.

  • High quality materials

    You can tell it's made to last, it doesn't look fragile.

    Joseph H.

  • It helps me recover faster

    After training, my breathing returns to normal in less time.

    Isabella M.

  • Perfect for home workouts

    I use it in my routines and I feel the difference.

    Tomás R.

  • It really works

    It's not a trick, you can feel the effort and improvement.

    Benjamin F.

  • Practical and easy to use

    It's not complicated, you just set it up and that's it.

    Emily S.

  • It helps me keep up

    Even in long cardio sessions.

    Ricardo A.

  • Feels professional

    It's like the kind of equipment serious athletes use.

    Michael T.

  • “It really works”

    I was afraid it was pure marketing, but my lungs do feel stronger.

    Ana M.

  • Totally worth it

    I tried it out of curiosity and now I don't train without it.

    Andrés M.