What is the maximum resistance setting in cm H20?

The maximum resistance is 100 cmH2O. We have level 1 ~ 9 resistance. (Their resistance is from 16 cmH2O to 100 cmH2O.) If you want to check the detailed table, please contact us via Amazon message so that we can send you the photo file. Thank you for your question.

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💨 Elevate your breath, elevate your game — don’t let your lungs hold you back!

EFFORTLESS MAINTENANCE - Quick-detach mouthpiece ensures hygienic, hassle-free cleaning after every session.
SEAMLESS ON THE GO TRAINING - Ultra-compact, pocket-sized design fits effortlessly into any active lifestyle.
BREATHE STRONGER PERFORM LONGER - 9 resistance levels tailor your training to maximize lung capacity and stamina.
KOREAN PRECISION LASTING DURABILITY - Crafted with premium materials under strict quality control for reliable long-term use.
ENGINEERED FOR PEAK RESPIRATORY POWER - Strengthen inspiratory muscles to elevate oxygen intake and athletic endurance.

The BIG BREATHE Bigbreathe S-IMT is a compact inspiratory muscle trainer from Korea featuring 9 adjustable resistance levels to enhance lung strength, endurance, and oxygen efficiency. Designed for athletes and fitness enthusiasts, it supports improved respiratory performance and metabolism with a portable, easy-to-clean design built for durability.

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