Where the PFT experts come together

Clinical research

For over 20 years, ndd has been dedicated to supporting global research and clinical studies. We’ve partnered with some of the most prestigious organizations providing state-of-the-art equipment built on ndd’s patented TrueFlow Technology. TrueFlow™ is the only ultrasound spirometry technology proven to be accurate for a lifetime of flow and volume measurements.

Research Library

Our goal is to provide superior study support, device training and worry-free operation. We take pride in our commitment to help lessen the burden of lung disease in all areas of research and will continue on with our mission to provide easy to use, accurate and reliable products.

List of research centers using ndd devices

BOLD and PLATINO Studies

BOLD (Burden of Obstructive Lung Disease) and PLATINO (Proyecto Latino-Americano de Investigación Pulmonar) are international initiatives to assess the prevalence of COPD. All BOLD and PLATINO study sites strictly follow a standardized, well evaluated protocol. This protocol includes standardization on the EasyOne ultrasonic spirometer thanks to its stability, high accuracy and resilience.

EasyOne - COPD - PLATINO - BOLD - Proyecto Latino Americano de Investigacion Pulmonar - Burden of Obstructive Lung Disease - ultrasonic spirometer- spirometry

Map showing the sites participating in the Burden of Obstructive Lung Disease Initiative (http://www.boldstudy.org/sites.html)

The World Trade Center Study

The terrorist attacks on the World Trade Center of September 11, 2001, exposed thousands of Fire Department of New York City (FDNY) rescue workers to dust. Research to examine the long-term effects of their exposure began immediately. Seven years into their study, Paul Enright et al. were able to show that the workers' lung functions had declined substantially, particularly during the first year following the rescue operations. Results of the ongoing research have been published in the New England Journal of Medicine (NEJM). The scientists use EasyOne spirometers for the spirometry assessments, on which calibration checks are done regularly. They found that, even after seven years, there had been no change in the equipment's ability to measure accurately. They concluded that the EasyOne device is a calibration-free spirometer.

EasyOne - Calibration Free - spirometry

Skyline of downtown New York


The COPDGene Study is one of the largest studies ever undertaken to investigate the underlying genetic factors of Chronic Obstructive Pulmonary Disease or COPD. It looks for explanations for why some smokers develop COPD and others do not. The COPDGene study has chosen EasyOne equipment as a standard for spirometry and for DLCO testing at all 21 clinical study centers. To date over 200 publications have resulted from COPDGene.

COPDGene - COPD Genetic Epidemiology

Multicenter AIDS Cohort Study (MACS)

The EasyOne Pro was recently implemented in the Multicenter AIDS Cohort Study (MACS). The MACS investigates pulmonary function in HIV-positive and HIV-negative men and has followed participants for over 30 years since the beginning of the HIV epidemic. The study was designed to understand changes in pulmonary function that occur in the current age of HIV.

Multicenter AIDS Cohort Study Logo

Study and Treatment of Endangered Sea Turtles Trapped in Fishing Nets

The veterinary team of Drs. Daniel Garcia-Parraga and Jose Luis Crespo at Oceanogràfic in Valencia, Spain, study sick turtles’ respiratory systems with EasyOne spirometers, normally used to measure the volume of air entering and leaving the lungs of humans in order to diagnose conditions such as Chronic Obstructive Pulmonary Disease (COPD).

EasyOne spirometer - Sea Turtle - Spirometry - NDD

Understanding Lung Function in Dolphins and Whales

Researchers Dr. Micah Brodsky, VMD, and Andreas Fahlman, PhD, at Texas A & M University Corpus Christi, use our mobile ultrasound technology and software to measure pulmonary function in dolphins, whales and other sea animals. They are hoping to answer puzzling questions about diving physiology and aquatic mammal disease and behavior, which may also lead to a better understanding and treatment of lung problems in humans, including those that afflict premature babies.

EasyOne spirometer - NDD - Dolphin - spirometer
Lung function measurement on a dolphin performed at Oceanogràfic in Valencia, Spain
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