ndd Medical Technologies

EasyOne Sky

Guided spirometry. Connected insights.
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The EasyOne Sky transforms respiratory diagnosis and management with a fully connected spirometry solution.

Guided by Buddy, ndd’s built-in spirometry coach, patients can perform tests more easily while providers achieve consistent, high-quality results. With secure cloud infrastructure protecting every test and real-time insights that give healthcare systems visibility into testing performance across their network, our ecosystem supports you from deployment to diagnosis, helping teams deliver better care with confidence.

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easyone sky center view easyone sky bottom view easyone sky side view Man sitting in front of a doctor holding an EasyOne Sky easyone sky spirometer in use

nddHub – A web-based portal for real-time insights into testing performance

Using nddCloud, nddHub provides centralized fleet management to help you run more efficient, high-performing clinics across your entire network. Monitor performance trends in real time and address issues early, before they impact patient care.

  • Track test frequency and volumes in real time
  • Visibility into user activity and clinic-level performance
  • Oversight across all your network sites
  • Analyze tests, organize users, assign patients, and monitor device status and activity
  • Alerts when testing stops or quality declines (coming soon!)

Meet Buddy, Your Spirometry Coach.

Proper coaching is an important part of spirometry. It helps to ensure accurate results, allowing your clinical team to diagnose and manage respiratory conditions effectively.

Effective coaching can minimize the patient’s anxiety and nervousness, leading to more reliable test results.1 It also helps to streamline the testing process, reducing the workload for healthcare staff. That’s where Buddy comes in.

Buddy helps you to …

  • demonstrate how to do a great test
  • coach patients
  • give immediate feedback
  • obtain reliable and high-quality spirometry test results

  1. Johnson, B., Steenbruggen, I., Graham, B. L., & Coleman, C. (2021, February 8). Improving spirometry testing by understanding patient preferences. ERJ open research. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7869590/ ↩︎

Training that goes beyond go live

EasyOne Sky combines hands-on onboarding with ongoing education to ensure long-term confidence and consistency.

  • Clinician-led training, onsite and/or virtual
  • Frequent educational webinars
  • Continuous learning to support staff turnover utilizing nddAcademy
  • Confidence that grows with your team

Easy deployment across any care setting

Whether you’re an Integrated Delivery Network (IDN), primary care network, or rural health system, EasyOne Sky is designed for fast, consistent rollout without adding complexity. ndd helps align people, processes, and technology to ensure smooth adoption and measurable impact across your organization. You’re supported in every step of the way.

  • Standardized device setup across all locations
  • EMR support for streamlined workflows
  • Consistent, accurate results from day one
  • Reduced operational burden on clinic staff

nddCloud: HITRUST-certified, secure data

nddCloud continuously monitors and securely backs up your data, ensuring every test is protected and accessible at all times. Built on HITRUST-certified infrastructure, your data remains compliant, reliable, and standardized across your network.

  • Automatic cloud backup for every test
  • Continuous data monitoring by ndd
  • HITRUST-certified security standards
  • Authorized provider access from any location
  • Consistent, reliable data across your entire network
  • Connection to healthcare platforms and EHR/EMR systems
ndd cloud connectivity

Who is Buddy?

Hi, I’m Buddy, your friendly spirometry coach! I was created to help healthcare providers make spirometry easy.

My goal is to ensure that you have all the tools and knowledge needed to obtain accurate results with every test. By offering clear instructions and helpful tips, I make the process smoother for both you and your patients.

Spirometry should be simple and easy, and I am here to help every step of the way!

Discover more on how we can help your patients achieve the best possible spirometry results in our latest blog.

buddy the spirometry coach and patient

EMR/EHR Integration Solutions

Seamlessly connect the EasyOne Sky into your EMR system through the nddCloud platform. The nddCloud connectivity solution is the optimal choice for healthcare practices, enabling streamlined workflows.

  • Support of all major data exchange protocols including HL7 and API
  • Centralized patient database
  • Dedicated connectivity team for EMR projects

To learn more, visit our EMR solutions page.

EasyOne Mobile – Desktop Application

The EasyOne Mobile desktop program provides essential spirometry software capabilities, optimized for use on desktop and laptop computers. Its user-friendly interface, coupled with ndd’s cloud integration, ensures the security of your patients’ data. With the EasyOne Mobile application, you can also call on Buddy’s advice through your computer to coach patients during a spirometry test.

  • Essential spirometry functionality
  • User-friendly interface
  • Seamless EMR integration
  • Robust cybersecurity
  • Centralized data access
easyone mobile desktop app

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.

  • Proven long-term stability
  • Contact and resistance-free measurement
  • Excellent accuracy and robustness
  • Patented technology

To review case studies and additional information about our proven technology, visit our TrueFlow technology page.

trueflow ultrasound technology

Worldwide Compliance with Standards

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

  • Compliance with 2019 ATS/ERS and relevant ISO standards
  • Registrations across the globe
  • CE approval
  • US FDA cleared to market

Click for a complete list of ndd certificates.

spirometry compliant with the standards

QC-Grading and Result Interpretation

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

  • Quality grades based on ATS/ERS 2019
  • ATS/ERS 2022 interpretation
  • GOLD 2008/Hardie
quality control graphs and spirometry interpretation

Comprehensive Reference Value Sets (%Pred, Z-score, and LLN)

The EasyOne Sky incorporates the most up-to-date reference values to ensure accurate and reliable spirometry measurements.

Supported reference values:

  • GLI (Quanjer 2012)
  • New! Global GLI (Bowerman 2023)
  • NHANES III (Hankinson 1999)

Please consult our Application Note for more information about reference values.

spirometry predicated set graph

Infection Control

The EasyOne Filter solution provides additional protection for those who wish to include a filter when performing tests.

  • The EasyOne Filter keeps the ambient environment clean for technicians and patients.
  • The ndd breathing mouthpiece protects the flow sensor from contamination.

Avoid cross-contamination and keep cleaning to an absolute minimum.

  • Parts exposed to the patient’s breath are single-patient-use.
  • The sensor is protected from contamination by the ndd breathing mouthpiece.

Please visit our Infection Control or the EasyOne FlowTube page for more information.

ndd mouthpieces provide infection control

Product availability

EasyOne Sky is only available in certain countries. Please contact our sales team for further information.

Choose your path to better COPD management

Packages

EasyOne SkyComfort SubscriptionEasyOne SkyEnterprise SubscriptionEasyOne SkyComfort PurchaseEasyOne SkyEnterprise Purchase
EasyOne Sky device included✅✅✅

✅

nddHub access*

🚫

✅🚫

✅

nddCloud access5 users/device10 users/device3 years (5 users/device)

3 years (10 users/device)

EMR integration set-up and maintenance✅✅🚫

🚫

Additional online training resources (nddAcademy)*🚫✅🚫

✅

Warranty

Unlimited

Unlimited

3-years

3-years

FlowTubes

100/year

200/year

🚫

🚫

Initial in-service

✅

✅

✅

✅

*with active subscription

Downloads

You will see available downloads after providing your location.

Software
Software

  • EasyOne Mobile - V1.5.6.zip

    For use with EasyOne Sky and in the US only

    Release date: 2025-09-01
    Related documents

    By clicking the checkbox below, you agree to the terms of this subscription and the additional legal terms baa, terms and conditions, privacy policy. If you are accepting this agreement on behalf of a medical practice or other legal entity, you represent that you have the authority to bind such entity to these terms and conditions, in which case the terms “you” and “your” shall refer to such entity. If you do not have such authority, or if you do not agree with these terms and conditions, you may not use EasyOne Mobile with nddCloud.

Brochures
Brochures

Manuals
Manuals

Specifications

  • Standards & Recommendations

    Quality, electrical, medical devices
    ISO 13485, ISO 14971, IEC 62366-1,
    IEC 60601-1, IEC 60601-1-2, 2012/19/EU, 2011/65/EU, 2015/863, 2006/66 EU, 2018/852, 2014/53/EU,
    Market clearance e.g.
    FDA 510(k)
    EU MDR 2017/745
    Standards
    ATS/ERS 2019 Spirometry Standard

  • Languages – User Interface

    English, Spanish

  • Users & Patients

    User group
    Healthcare professional
    Age range (patient)
    > 4 years

  • Technical Specifications

    Dimensions
    4.3 x 3.3 x 1.3” / 111 x 84 x 33 mm
    (L x H x W), 4.9 oz / 140 g (w/o battery)
    Device classification
    Type BF applied part
    Operating conditions

    Temperature:

    Rel. humidity (non-condensing):

    Atmosph. pressure:

    41-104 °F | 5-40 °C

    15-90%

    700-1060 hPa

    Power source
    2 x AA batteries
    (power consumption 0.3 W)
    Communication interface
    Bluetooth Low Energy V5.1 and higher
    Data management
    EasyOne Mobile
    App compatibility
    EasyOne Mobile app is compatible with Windows.
    Hardware Requirements for EasyOne Mobile
    Windows System

    Recommended Requirements:

    - CPU: AMD/Intel® with 4+ cores (e.g. Intel® Core™ i5-12400)
    - RAM: 16+ GB
    - Disk: Solid State Disk with a minimum of 10% free disk space
    - Resolution: 1920 x 1080 pixel
    - Color depth: 32 bit
    - Broadband internet connection

  • Test & Parameters

    Test
    Test description
    Available Parameters
    FVC
    Forced expiratory vital capacity test

    BEV, FEF25, FEF25-75, FEF50, FEF75, FET, FEV.75*, FEV.75/FVC*, FEV1, FEV1/FVC, FEV1Q, FVC, PEF

    *only shown for children <6 yr

    FVL
    Flow volume loop test

    BEV, FEF25, FEF25-75, FEF50, FEF75, FET, FEV.75*, FEV.75/FVC*, FEV1, FEV1/FVC, FEV1Q, FIVC, FVC, PEF, PIF

    *only shown for children <6 yr

    Post
    Post bronchodilator test
    FVC %change, FEV1 %change

  • Predicted Normal Values – Spirometry

    Global GLI (Bowerman) 2023, GLI (Quanjer) 2012, NHANES III (Hankinson) 1999

     

     

  • System Interpretation

    ERS/ATS 2022, GOLD/Hardie

     

     

  • Flow/Volume Sensor

    Type
    Ultrasonic transit time
    Flow range
    ± 16 l/s
    Flow resolution
    1 ml/s
    Flow accuracy (except PEF)
    ± 2 % or 0.020 l/s
    PEF accuracy
    ± 5 % or 0.2 l/s
    Volume range
    ± 12 l
    Voume accuracy
    ± 2 % or 0.050 l
    Resistance
    < 1.5 cm H2O/l/s at 14 l/s

  • Order Information Accessories*

    Part number
    Product
    5050-50
    EasyOne FlowTube, individually wrapped,
    box of 50 pcs
    5050-200
    EasyOne FlowTube, individually wrapped, box of 200 pcs
    5050-500
    EasyOne FlowTube, individually wrapped, box of 500 pcs
    2030-2
    ndd calibration syringe 3L with EasyOne FlowTube Cal Check Adapter
    5030-2
    EasyOne FlowTube adapter
    2800-50.1sp
    EasyOne Sky Bluetooth dongle
    2091-422
    EasyOne Filter FT, box of 100 pcs
    *not available in all countries

  • Order Information Device*

    Part number
    Product
    2800-1M
    EasyOne Sky
    2800-1D
    EasyOne Sky incl. BLE dongle for PC use
    *not available in all countries

Accessories

FlowTube mouthpiece

FlowTube mouthpiece

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