Where the PFT experts come together

EasyOne Pro® LAB

Portable DLCO, MBW, Lung Volumes, LCI and Spirometry

EasyOne Pro LAB - Back side - NDD - Spirometer - Spirometry
EasyOne Pro LAB with arm and sensor - NDD - Spirometer - Spirometry

EasyOne Pro LAB provides the most efficient and accurate way for complete lung function testing. With EasyOne Pro LAB you can accurately measure the Lung Clearance Index (LCI) using Multiple Breath Nitrogen Washout (MBW) in various settings. Engineered using our patented TrueFlow™ and TrueCheck™ technology, the EasyOne Pro LAB eliminates all common sources of error and saves time. No need for a Body Box.

  • Patient and User Centered Design

    The EasyOne Pro LAB is both patient-friendly and easy to maintain. For MBW you only need an oxygen supply, no expensive SF6 gas required. Medical professionals can perform annual maintenance themselves in only 10 minutes.

  • Calibration-free TrueFlow™ Technology

    Extremely robust and accurate flow results are delivered without calibration thanks to our TrueFlow™ technology integrated into the EasyOne Pro LAB.

  • Self-Quality Control through TrueCheck™ Technology

    With EasyOne Pro LAB you can fully focus on the patient. TrueCheck™ ensures that each gas measurement is accurate without calibration and warm-up time.

  • Compact & Lightweight Design

    Weighing only 18 lbs. (9kg), the EasyOne Pro LAB is compact & durable – without compromising quality. It easily fits in any office setting.

Why our customers love us
"We are over-the-top satisfied with ndd's EasyOne Pro. 

The EasyOne Pro is easy to use, easy to assemble, and is great for large and claustrophobic patients. The EasyOne Pro saves a huge amount of floor space, and it's portable. 

We've had many patients say they will never go back to the surrounding hospitals because of the convenience of testing with ndd's EasyOne Pro (and the fact that they don't have to enter that uncomfortable PFT body box)."
Sarah Raile
RRT/Wray Hospital and Clinic - Banner Health
"The pulmonologist that tests at our facility is impressed with the EasyOne Pro, as the testing results are spot-on with a similar PFT test done in a traditional body box. We would go with the Pro over a traditional body box any day."
Sarah Raile
RRT/Wray Hospital and Clinic - Banner Health
"We recently acquired several EasyOne Pros for three hospitals in Madrid. Given the current situation [COVID-19], this equipment guarantees proper cleaning & disinfection between patients. In addition, it's very easy to use, something the Team very much appreciates - it's portable, and it brings the highest accuracy. An excellent medical device."
Dr. Rodríguez-Moro
Principe de Asturias University Hospital
“Being on a truck we really like equipment that can be mobilized. It has to be small, it has to be able to be moved around without breaking, it has to be reliable. When I did the research, the EasyOne Pro was being used in that capacity for other outreach clinics and I thought we should invest in that for our trucks. It has been a great decision actually. It’s very easy to use, reliable and accurate.”
Dr Rolf Gomes
Founder of Heart of Australia & Cardiologist
"We see that ndd technology is always accurate when comparing it to simulator data or biological control values. In addition to the outstanding accuracy the ndd software is very user-friendly, which makes ndd devices easy to use.”
Alejandro Casas MD, Ph.D
General Director, Colombian Pulmonological Foundation/Former President, ALAT (Latin American Thoracic Association)
"My clinical research on asthma and COPD happens at the point of care in some of the most remote, resource limited places in the world. Because of this, I need highly portable, very durable diagnostic devices reporting consistent and accurate results even under the toughest conditions. I use ndd’s devices because I know no matter the condition, the device will report accurate results."
William Checkley, MD
Associate professor at John Hopkins Bloomberg School of Public Health
"Our academic activities related to trainings and continuous learning for the specialists that take care of the respiratory health in our region, are supported by new technologies. Our experience with ndd devices has been very positive because they adapt to our necessities, they are always updated regarding new standardization and technological advances."
Gustavo Giraldo
Public Relations and Marketing Manager/Asociación Latinoamericana de Tórax (ALAT)
"The EasyOne Pro’s portability and ability to accurately perform mobile PFTs in under 30 minutes make it the perfect device for this type of clinic. It allows us to use the patients’ time more efficiently, better understand their illness, and improve assessment of their condition. It’s easy to operate and allows us to provide prompt and accurate assessment of patients’ lung function.”
Anoop Nambiar, MD
Medical Director of the San Antonio Pulmonary Fibrosis Support Group and Director of the University of Texas Health Science Center at San Antonio Center for Interstitial Lung Disease.

Details EasyOne Pro® LAB

Testing at the Point of Care

Get maximum efficiency and patient comfort. TrueFlow™ and TrueCheck™ ensure optimal results, independent of the clinician.

  • Always safe & ready to test with TrueCheck™
  • Diffusion capacity results in 3 minutes
  • User- and patient-friendly design
  • Ideal also for claustrophobic and obese patients

QC-Grading and Result Interpretation

Get automatic quality grading and interpretation based on NLHEP and ATS/ERS with the EasyOne Pro.

  • Quality grades based on NLHEP and ATS/ERS 2005 and 2019 for all tests
  • ATS/ERS interpretation decision tree
  • GOLD/Hardie, NICE, JRS and NLHEP
  • Diagnose Asthma, COPD, Emphysema and pulmonary vascular disorders

Custom Provocation Protocols

Customize available standard provocation protocols for your needs or create your own. You can easily install the customized provocation protocol on your ndd devices.

  • Build your own provocation protocols
  • Modify existing provocation protocols
  • Export and load protocols onto other devices

Pre-installed protocols: Mannitol, MC, Exercise Provocation

Watch our video guide for more details.

Provocation Protocols

TrueCheck™ – Always Safe & Ready to Test

TrueCheck™ takes care of the essential quality control for gas analysis testing. EasyOne Pro is the only device proven to be accurate for a lifetime for DLCO measurements.

  • Calibration-free with proven long-term stability
  • Checks gas-sensor linearity and delay
  • Checks for leaks and gas concentration
  • Patented technology

To review case studies and additional information about our proven technology, please click here.

TrueFlow™ - Trusted Ultrasound Technology

Stop worrying about calibration or accuracy of flow measurements. TrueFlow™ is the only ultrasound technology proven to be accurate for a lifetime for flow and volume measurements.

To review case studies and additional information about our proven technology, please click here.

EasyOne connect icon

Infection Control

ndd inline filter solutions provide additional COVID-19 protection for those who wish to include a filter when performing tests.

  • The filter keeps the ambient environment clean for technicians and patients
  • The Spirette protects the flow sensor from contamination
  • Fully passes 24 Waveform tests as required by the ATS/ERS standard

Avoid cross-contamination and reduce cleaning to an absolute minimum:

  • All parts exposed to the patient's breath are single-patient-use
  • Sensor is protected from contamination by ndd breathing mouthpiece
  • Only simple surface cleaning required of the device
  • No special storage conditions required for single-patient use Spirettes and adapters
Elderly Woman Wearing Mask

EMR/EHR Connectivity and Centralized Data

Transmit and share data among ndd devices or to your Electronic Medical Record system.

  • Integrated into all major EMR/EHR systems via HL7, XML, GDT or API
  • References for integration available on request
  • Simple local or SQL server database
  • Review test results from any PC using EasyOne® Connect

Printer and Network Connectivity

Stay connected and easily share data or print reports. EasyOne Pro is equipped with a modern embedded PC solution that makes network and printer connections extremely easy and stable.

  • USB / Network printer compatibility
  • Easily integrate into any network
  • USB, HDMI, Ethernet
  • Optional WiFi dongle
EasyOne connect logo

Cyber Security Protection for IT and Patient Information

Protect your patient information. EasyOne Pro is a modern system designed to fulfill your cyber security needs.

  • Windows Defender Antivirus and Firewall
  • Operating system updates
  • Encrypted database export
  • User authentication with automatic log off
  • FDA Approval in 2017 with cyber security documentation

Analysis and Recording of Raw Sensor Data

Go beyond normal lung function testing and get access to all raw data of any test collected. The tool WBreath is used in special study setups, but also by our support team.

  • Access and measure raw data
  • Advanced Data Analysis
  • Fully integrated

Worldwide Compliance with Standards

Stay compliant with ATS/ERS standards and specific country regulations.

  • Fully conformant to ATS/ERS 2005 and 2019 and ISO standards
  • Worldwide approvals
  • CE Approval
  • FDA Approval
  • Japan Approval

Software releases EasyOne Pro® LAB

Software is specific to your device version. Please verify before updating. Serial number range (Pro 55xxxx, LAB 65xxxx)

EasyOne Pro V5 Updater V03.09.05.19.zip

Release date: 2024-04-18
Application Notes
Please provide your location to see available downloads
Your location
Please provide your location to see available downloads
Your location
Please provide your location to see available downloads
Your location
Please provide your location to see available downloads
Your location

FAQs EasyOne Pro® LAB

ndd can integrate with any EHR vendor that can support a bi-directional HL7 orders/results lab interface. 

ndd offers a file-based integration utilizing an SFTP or network-based location for file communication with an EHR vendor. HL7 is the standard data structure that ndd utilizes but can support other data formats as well. The use of other interface engines can be utilized to complete an integration project.

The first step for an integration project is to complete the EMR integration request form here: https://nddmed.com/emr. An integration specialist will then reach out to you with the next steps.

Duration depends on the IT team of the facility. The ndd side of the integration process can be completed within a few hours for standard integrations. EasyOne Connect software is simply configured to point to the SFTP or network-based location where files are being placed.

EasyOne Connect software utilizes AES 256 encryption. SFTP has its own security protocols built into it. If a network-based location is utilized, it will follow the protocols of the facility.

Yes, EasyOne Connect offers an optional centralized patient database feature, enabling seamless access to patient orders and results across all instances of the software, irrespective of physical location. Customers can leverage their on-premise SQL servers or MS Azure environments to ensure data accessibility and consistency. 

EasyOne Connect provides flexible options for managing users and their access. User accounts can be created and managed directly within EasyOne Connect for simple permission control. For more advanced management, the software supports integration with Active Directory for using your existing directory service accounts, groups, and permissions. EasyOne Connect also supports optional single sign-on (SSO) capability through integration with major identity providers. Please see application note for additional information. 

ndd has integrated with all major vendors and can provide examples of successful integrations with various healthcare providers and organizations. You can contact our integration department via email at [email protected] for more information.

ndd does not handle the maintenance and upgrades as the software is installed locally on the client’s machine. We do, however, offer a silent installer package that our support team can assist you with. This silent installer can be executed via a script through active directory commands depending on your facility. It is the responsibility of the facility to implement any future updates. There is no licensing fee associated with the software and/or the updates.

ndd does not charge for standard integration. In the event custom development is needed, ndd will provide a statement of work before a project begins. Almost all EHR vendors will charge a fee that the client is responsible for.

HL7 specifications can be found here.

  1. Local SQLite file-based database.
  2. On-premise Microsoft SQL Server database.
  3. Azure cloud-hosted Microsoft SQL Server database.

Please see the application note for additional information.

The facility is responsible for setting up and hosting either option. ndd requires a username and password if using an SFTP environment.  

The result HL7 message will consist of a combination of discrete results and an embedded base64 PDF attachment for the PFT report. If you prefer, we also offer the option of including a reference link instead of the embedded PDF.

No, a server is not required.

You can schedule a meeting with an integration engineer from 8 a.m. to 5 p.m. ET Monday through Friday. ndd can accommodate meetings outside of that timeframe if planned accordingly. The integration team can be reached via email at [email protected]. The support team can also be reached via email at [email protected] or by phone at (978) 470-0923.

The EasyOne Pro LAB is exactly the same as the EasyOne Pro, except that it has the capability to perform the multi-breath washout (MBW) test. This test requires additional sensors and the use of 100% Oxygen.

To add a filter (2) to the EasyOne Pro, insert the (1) Spirette FA Pro/LAB into the EasyOne Pro handle. Then attach the filter to the Spirette FA Pro/LAB, as shown in the diagram below. If you have questions about how to connect or use ndd filters, please contact ndd customer support in North America at [email protected] and internationally at [email protected].

EasyOne Pro LAB inline filter solution

You can find the product specification on the respective product pages. The specification contains a list of all supported normal values.

To get more detailed information about the supported parameters, age range, ethnicities and height range of each supported predicted set, please click here.

The DLCO value can be adjusted for hemoglobin, altitude and the COHb concentration and CO back pressure.

Click here to find more information about the formulas used to derive DLadj.

Our research software WBreath can be used to perform a slope analysis. Please click here to get more information on this topic.

BTPS Correction is used to convert flow and volume measured at ambient conditions to the conditions within the lungs. Ambient conditions are called ATP (ambient temperature, pressure); the conditions within the lungs are called BTPS (body temperature, pressure, water vapor saturated).

Click here for more information.

Yes. Connecting the device to your network allows several additional benefits.

o Take advantage of your network data backup processes

o Print directly to your network printers

o Save reports electronically (such as PDF) directly to a network folder

o Connect with your EMR system

o Take advantage of a more powerful SQL Server database engine (click here for more detailled instructions)

o Connect multiple devices to a single, shared database

o Get access to the device database from your PC using our free EasyOne Connect PC software application

All EasyOne products are designed to require no calibration and minimal maintenance. The device is designed to remain in calibration throughout its lifetime. No calibration procedures are required prior to testing. Our TrueFlow ultrasonic technology assures accurate volume and flow measurements every time. And our unique automated TrueCheck process assures that all gas measurements are accurate for each test. You may choose to use the optional 3-liter calibration syringe to verify volume and flow accuracy, as recommended by ATS/ERS.

A PFT session including spirometry and DLCO generally takes less than 20 minutes.

The EasyOne Pro/LAB is compatible with virtually all PC-style USB printers, without the need for external driver installation. The printer can be connected directly to a USB port on the rear of the device. We can sell you a printer with the device, or you can supply your own.

You can also connect the device to your network where it will automatically find any connected, compatible printers avoiding the need for a dedicated printer for your PFTs.

Spirette: Each test performed requires the use of a spirette. This is a single-patient-use mouthpiece which ensures that no contamination can reach the internal flow path of the device. This means that no cleaning is required between patients, and no calibration, ever. Simply toss the spirette after each test session.

Barriette: For a DLCO test, in addition to the spirette, you will need to use a barriette. This protects the valve and hose system from contamination, eliminating the need for cleaning between patients.

FRC barriette: This is similar to the DLCO barriette, but used only when performing a multi-breath washout test.

Gasses: The DLCO test requires a standard medical grade DLCO gas mixture consisting of 0.3% Carbon Monoxide, 10% Helium, 21% Oxygen, remainder Nitrogen. The multi-breath washout test requires 100% Oxygen. These gasses are readily available from your local medical gas supplier in various tank sizes. We will assist you in selecting the appropriate tank regulators required for connection to the device.

The device itself is self-contained and measures only 270 x 335 x 270 mm (10.6 x 13.2 x 10.6 inches) (h x w x d). No additional PC, monitor, keyboard or control unit is required. This allows it to easily fit on a counter. You will also need to allow for storage of the gas tank(s) which come in a variety of sizes, and can usually fit comfortably in a corner, or under the counter.

The EasyOne Pro/LAB is designed to require minimal maintenance. The annual replacement of four external components is ALL that is required to keep the system running smoothly. These components are available as a convenient kit. Installation is done in minutes and requires no special tools.

Data can safely be exported by using the “Export Data” feature or “Backup” feature within the Storage tab in the configuration.

Specifications EasyOne Pro® LAB

Quality, Medical Devices & Electrical
ISO 13485, ISO 14971, IEC 62366, IEC 62304, ISO 26782, ISO 23747, IEC60601-1, IEC 60601-1-2, ISO 10993-1
510(k) market clearance
MDD 93/42/EEC
CE marked
Associations &
ATS/ERS 2019 and 2005, NIOSH/ OSHA, SSA Disability

Graphical user interface
Brazilian Portuguese, Chinese, Croatian, Danish, Dutch, English, Finnish, French, German, Italian, Japanese, Norwegian, Portuguese, Russian, Spanish, Swedish, Turkish, Vietnamese

9% to 11% medical grade helium
0.27% to 0.33% medical gradecarbon monoxide
18% to 25% medical grade oxygen, balance nitrogen
The DLCO test requires a gas mixturewithin an accuracy range of <2%
Oxygen for hospital use

Printing options
PCL standard, direct to printer or over network
Data management
EasyOne Connect (SQLite, MS SQL Server)
HL7, XML, GDT, via USB, LAN Network
Hardware Interface
Ethernet port, USB, possibility to upgrade to WLAN
No. of tests
> 10‘000 tests
Age range
Spirometry > 4 years, DLCO > 6 years, MBW > 4 years or > 18 kg
27 x 33.5 x 27 cm3 (H x W x D), 8 kg
Device classification
Protection class I, Type BF applied part
Operating conditions
Temp 10-40 °C/ 50-104 °F, Rel. Humidity 30-75%, no condensation, Atmosph. Pressure 700 - 1060 hPa
Power Consumption
Up to 80 VA

ATI, BEV, EOTV, FEF10, FEF25, FEF 2575, FEF2575_6, FEF40, FEF50, FEF50/FVC, FEF50/VCmax, FEF60, FEF75, FEF75-85, FEF80, FET, FET25-75, FEV.25, FEV.5, FEV.5/FVC, FEV.75, FEV.75/FEV6, FEV.75/FVC, FEV.75/VCmax, FEV1, FEV1/FEV6, FEV1/FVC, FEV1/FVC6, FEV1/VC, FEV1/VCmax, FEV3/FVC, FEV3/VCmax, FEV3, FEV6, FVC, MEF20, MEF25, MEF40, MEF50, MEF60, MEF75, MEF90, MMEF, MTC1, MTC2, MTC3, MTCR, PEF, PEFT, t0, VCmax
ATI, BEV, CVI, E50/150, EOTV, FEF10. FEF25, FEF2575, FEF2575_6, FEF40, FEF50, FEF50/FVC, FEF50/VCmax, FEF60, FEF75, FEF75-85, FEF80, FET, FET25-75, FEV.25, FEV.5, FEV.5/FVC, FEV.75, FEV.75/FEV6, FEV.75/FVC, FEV.75/VCmax, FEV1, FEV1/FEV6, FEV1/FIV1, FEV1/FIVC, FEV1/FVC, FEV1/VC, FEV1/VCmax, FEV3/FVC, FEV3/VCmax, FEV3, FEV6, FIF25, FIF2575, FIF50, FIF50/FEF50, FIF75, FIV.25, FIV.5, FIV1, FIVC, FVC, MEF20, MEF25, MEF40, MEF50, MEF60, MEF75, MEF90, MIF25, MIF50, MIF75, MMEF, MMIF, MTC1, MTC2, MTC3, MTCR, PEF, PEFT, PIF, t0, VCmax
ERV, IC, IRV, Rf, VC, VCex, VCin, VCmax, VT
MVV, MVV6, MVVtime, Rf, VCext, VT
BHT, COHb, ColBarVol, CO Conc, HE Conc, O2 Conc, Anatomic Dead Space, System Dead Space, Discard Volume, DLadj, DLadj/VA, DLCO, DLCO/VA (KCO), ERV, FA CO, FA HE, FE CO, FEV1/FVC, FI CO, FI HE, FRC sb, FRC Cor, Hb, tI, Kroghs K, PaO2, RV sb, RV Cor, RV/TLC sb, RV/TLC Cor, TLC sb, TLC Cor, TLCO, VA sb, VA Cor, VCext, VCmax, Vd, VI, VT
CEV, CEV5, Anatomic Dead Space, Syst Dead Space, ERV, fN2 End, fN2 Start, FRC base, FRC extrapol, FRC mb, IC, IRV, LCI,LCI5, M0, MR1, MR2, Rf, RV mb, RV/TLC mb, TLC mb, VA mb, VC, VCex, VCin, Vd, VT, VT/FRC mb, VT/kg, Scond, Sacin

Quanjer 2012, Stanojevic 2009
North America
Crapo 1981, Dockery (Harvard) 1993, Eigen 2001, Gutierrez (Canada) 2004, Hsu 1979, Knudson 1983, Knudson 1976, Morris 1971 & 1976, NHANES III (Hankinson) 1999, Polgar 1971
Latin America
Chile 2010, Chile (Pediatrics) 1997, Pereira 1992, Pereira 2006/2008, Pérez-Padilla (PLATINO) 2006, Pérez-Padilla (Mexico) 2001, Pérez-Padilla (Mexico, Pediatrics) 2003
ERS (ECCS, EGKS, Quanjer) 1993, Garcia-Rio (SEPAR) 2013, Falaschetti 2004, Forche (Austria) 1988 & 1994, Klement (Russia) 1986, Roca (Spain, SEPAR)1982, Rosenthal 1993, Sapaldia (Switzerland) 1996, Vilozni 2005, Zapletal 1977, Zapletal 2003
Europe Scandinavia
Berglund Birath (Sweden) 1963, Finnish 1982 (1998), Gulsvik (Norway) 1985, Hedenström 1985 & 1986, Langhammer (Norway) 2001, Kainu (Finland), 2016, Nystad 2002
Gore Crockett 1995, Hibbert 1989
Chhabra (India) 2014, Dejsomritrutai (Thailand) 2000, Indonesia 1992, IP (China, HongKong) 2000 & 2006, JRS 2001 & 2014
Mengesha (Ethiopia), 1985

North America
Ayers 1975, Burrows 1961, Crapo 1981 & 1982, Knudson 1987, McGrath & Thompson 1959, Miller 1980, Gutierrez (Canada) 2004, NHANES (Neas) 1996, Polgar 1971
Latin America
Vazquez Garcia (ALAT) 2016, Gochicoa 2019
Stanojevic (GLI) 2017, ERS ECCS/EGKS 1993, Zapletal 1977, Roca 1990 & 1998, Hedenström 1985 & 1986, Gulsvik 1992, Klement (Russia) 1986
Pereira 2008, Thompson 2008, Kim 2012, Chhabra (India) 2015), Ip (China, HongKong) 2007, JRS (Japan) 2001

Verbanck 2012

Ultrasonic transit time
Flow Range
± 16 l/s
Flow Resolution
4 ml/s
Flow Accuracy
(except PEF)
± 2% or 0.02 l/s
Volume Resolution
1 ml
Volume Accuracy
± 2% or 0.050 l
PEF Accuracy
± 5% or 0.200 l/s
MVV Accuracy
± 5% or 5 l/min
~ 0.3 cm H2O/l/s at 16 l/s
Sample Rate
400 Hz (converted and stored with 200 Hz)
Non-dispersive infrared
0 to 0.35%
0 to 10%
0.0001% (1 ppm)
± 0.0015% (15 ppm)
0-1%: 0.05% CO2
1-3%: 0.1% CO2
3-6%: 0.15% CO2
6-9%: 0.2% CO2
9-10%: 0.3% CO2
Ultrasonic transit time
0 to 50%
0 to 100%

Part Numbers
EasyOne Pro LAB Respiratory Analysis System

Part Num
Case of 50 Spirette mouthpieces
Case of 200 Spirette mouthpieces
Case of 500 Spirette mouthpieces
Case of 50 DLCO Barriette for EasyOne Pro and LAB
Case of 100 DLCO Barriette for EasyOne Pro and LAB
Case of 40 FRC Barriette for EasyOne Pro LAB
Case of 80 FRC Barriette for EasyOne Pro LAB

Spirette FA Pro/LAB Specifications EasyOne Pro® LAB

Spirette FA Pro/LAB
Compatible with ndd products
EasyOne Pro and EasyOne Pro/LAB with Software Version V03.07.01.09 (or higher)
Compatible with filter
U.S. & International customers: To learn more about compatible inline filter solutions available in your region, please use the contact us form.
Transport and storage conditions
Temperature: –20 to 50° C Humidity: 5 to 95% Pressure: 400 to 1060 hPa
31 x 38 x 141 mm
Material Spirette FA Pro/LAB
Linear Low-Density Polyethylene, Polypropylene (LLDPE and PP)
Material Bag
Get in touch
Request Info
Join the ndd family today.

Be the first to learn about special offers, product news, and industry updates!