Design of a Novel Low-Cost 3D-Printed Respiratory Muscle Trainer for Post-Covid Rehabilitation for LMIC
By Knulst AJ, et al. (2026)
Key Highlights:
- Validated expiratory pressure range: 0 to 80 cmH20.
- <USD 1.30 total material cost per device.
- Fully 3D printable design with local PETG filament and common pen spring.
- Open-source hardware files available online for further dissemination.
