Meet Buddy, your new spirometry coach
ndd Medical Technologies

About us

Advancing lung health, one test at a time. ndd Medical Technologies.

For 30 years, ndd has been dedicated to transforming how the world detects, understands, and manages lung disease. We believe that every patient deserves the chance for early, accurate diagnosis, and every clinician deserves tools they can trust. From the invention of TrueFlow ultrasound technology to delivering complete pulmonary function solutions, we’ve remained committed to one goal: Leading respiratory care innovation for better lung health globally. Our work is driven by a simple truth — early detection changes lives.

Early diagnosis for better lung health. Celebrating 30 years of innovation.

For three decades, we’ve been dedicated to early diagnosis for better lung health. Lung diseases often remain hidden until symptoms become severe but early diagnosis doesn’t just change outcomes; it can save lives. Since 1996, we’ve led the way in revolutionizing lung function testing, delivering spirometry and complete PFT solutions built on our TrueFlow ultrasound technology to provide accurate, calibration-free testing to clinicians worldwide.
30 years of better lung health.

Our vision - To greatly improve the quality of life for people living with lung disease

We envision a world where early diagnosis of lung disease is the standard of care. A world where every clinician, regardless of settings, has the tools to detect lung disease early and every patient has the chance to live longer with the best quality of life.

To help make this vision a reality, we are committed to making lung function testing simple to adopt and easy to use. From initial setup to ongoing support, we aim to help healthcare facilities integrate pulmonary testing seamlessly ensuring it is intuitive, accessible, and reliable. By simplifying workflows, removing barriers, and providing comprehensive guidance, we want to empower clinicians to deliver accurate lung function testing as a natural part of routine care.

Our mission - Early Diagnosis for Better Lung Health

Our mission is to ensure that every patient has access to early, accurate detection of lung disease. By delivering high-quality pulmonary testing to the point of care, we help clinicians diagnose sooner, treat earlier, and prevent avoidable suffering. For over 30 years, ndd’s EasyOne products have been widely recognized for their role in advancing innovation, reliability, and global adoption in pulmonary function testing.

Why early detection matters

Millions of people live with undiagnosed or misdiagnosed lung conditions. Symptoms often appear only after significant harm has already occurred. Early detection:

  • Identifies disease before symptoms escalate
  • Helps prevent irreversible lung damage
  • Enables earlier, more effective treatment
  • Improves long-term outcomes and quality of life1

  1. Dehondt V, Vauterin D, Derom E, Lahousse L. Timely Spirometry is Associated with Lower All-Cause Mortality: a Nationwide Obstructive Cohort Study. Chest. 2025 Mar 28. ↩︎

30 years of transforming lung care

This year, we are proud to celebrate 30 years of advancing lung function testing and respiratory innovation. Over the past three decades, we have:

  • Paved the way in ultrasound technology for pulmonary diagnostics through our TrueFlow Technology building on our founders’ pioneering research1 2 3—a calibration-free innovation used across clinical, veterinary, high-altitude, sea-level, and even space applications
  • Expanded from spirometry into DLCO (Diffusing Capacity of the Lungs for Carbon Monoxide), full PFT (Pulmonary function testing), and advanced MBW (multi-breath washout) solutions
  • Delivered reliable, easy-to-use diagnostic solutions to clinics, hospitals, and research institutions worldwide
  • Helped millions of patients receive earlier, more accurate diagnoses
  • Supported leading global research by partnering with prestigious hospitals and contributing to landmark studies, including the World Trade Center health monitoring programs, the COPDGene study, the BOLD and PLATINO initiatives, the MACS study, and many more!

What began as a vision to simplify pulmonary testing has grown into a global mission to improve respiratory health through early detection. Our commitment to innovation, accuracy, and accessibility continues to shape the future of lung care around the world.


  1. Buess C. Transit-Time Ultrasonic Airflow Meter for Medical Application. 1988, PhD Thesis, ETH Zurich. ↩︎

  2. Buess C, Pietsch P, Guggenbuhl W, Koller EA. A pulsed diagonal-beam ultrasonic airflow meter. Journal of Applied Physiology 1986;61(3):1195–1199 ↩︎

  3. Buess C, Pietsch P, Guggenbuhl W, Koller EA. Design and Construction of a Pulsed Ultrasonic Air Flowmeter. IEEE Trans Biomed Eng 1986;BME-33(8):768–774. ↩︎

Join us in advancing the future of lung health

Whether you are a clinician, researcher, health system leader, or advocate, we invite you to join us in transforming how the world detects and manages lung disease, both in practice and through ongoing conversation.

Connect with us on social media to share insights, explore innovations, and engage with a global community.

Together, we can change the course of lung health — one test at a time.

LinkedIn: ndd Medical Technologies
Facebook: @nddMedicalTechnologies
X (formerly Twitter): @nddMedical

How it all started

Hear from the founders as they share how ndd started 30 years ago and the journey that has brought us to where we are today.

Get in touch today!

Get a quote
Don't miss what's next!

Exclusive offers, updates, and more.

Sign up today!