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Here's a cleaner and more user-friendly version of your instructions for using the *Lungciser™️*:
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*How to Use Lungciser™️*
1. *Setup*
- Remove the *Lungciser™️* from the duplex box.
- Connect the *tube* to the *Outlet Connector* located at the base of the Lungciser™️.
2. *Position*
- Place the Lungciser™️ in an *upright (vertical)* position.
3. *Breathing Exercise*
- Exhale normally.
- Place the *mouthpiece* firmly between your lips to create a seal.
- *Inhale deeply* and steadily, aiming to *lift all three coloured balls* (if possible).
4. *Relax*
- Remove the mouthpiece.
- Exhale and *rest briefly*.
5. *Repeat*
- Repeat steps *2 to 4* as recommended.
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*Remark:*
To estimate the volume of air you inhale:
> *Inhaled Volume = Column Volume × Retention Time*
Let me know if you'd like a visual version (e.g., for a brochure or poster)!