Respiratory Training Device – 5-Part Assembly (PLA + TPU)

This model is designed to help train and strengthen the respiratory muscles by restricting airflow during inhalation. The device consists of five 3D-printed parts:

• 3 PLA parts (main body, threaded insert, screw-on cap)
• 2 TPU parts (one way valve and mouthpiece)

The assembly is simple and requires only a small amount of glue for the body and thread part. The TPU parts are designed to flex and snap into place without adhesive.