Are these ist machines

Sorry, I don’t know what ist is, it certainly helped improve my breathing

Does this restrict your exhale breath as well? Title says inspiratory/expiratory nspiratory/expiratory but their description only talks about inhaling

It does have the potential to restrict ease of exhalation so that is ‘trained’ too. I find this a very helpful exerciser for improving my breath strength for brass playing.

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– Ultrabreathe® Breathing Exerciser – Ultrabreathe Adjustable Resistance Lung Breathing Exerciser | Laytex Free | Anti-Bacterial Medical Grade PVC (Phthalate, BPA and Latex Free)

Product ID: 203286594

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💪Adjustable resistance for tailored lung training

🛡️Anti-bacterial, medical-grade PVC for hygiene

🇬🇧UKCA & CE certified, proudly UK manufactured

Description

🌬️ Breathe Stronger, Perform Longer – Elevate Every Breath!

HYGIENIC SAFE - Made from phthalate, BPA, and latex-free medical-grade PVC to protect your health.
CERTIFIED QUALITY - UKCA & CE marked, ensuring top-tier safety and performance standards.
LIGHTWEIGHT PORTABLE - At just 200 grams, it’s easy to carry and use anytime, anywhere.
UNIVERSAL FITNESS ALLY - Perfect for all fitness levels, from beginners to seasoned athletes.
CUSTOMIZABLE LUNG POWER - Adjust resistance to match your fitness level and boost stamina.

The Ultrabreathe® Breathing Exerciser is a lightweight, adjustable resistance device designed to enhance lung muscle strength, power, and stamina. Made from anti-bacterial, medical-grade PVC free from phthalates, BPA, and latex, it ensures safe and hygienic use. UKCA and CE certified, this UK-manufactured tool suits all fitness levels, making it an essential addition to any athlete’s training arsenal.

Specifications

Units	200.0 Grams
Brand	The Oxygen Store

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