FIRST:The first mini-oscillometer, a revolution in pulmonary diagnostics.

FIRST utilizes OSCILLOMETRY or FOT (forced oscillatory technique) to detect and localize peripheral and central obstructions, as well as tidal Expiratory Flow Limitation (EFLt).

Using FIRST, healthcare professionals can quickly identify and detect respiratory dysfunctions, supporting better diagnosis and a more effective treatment patient outcomes.

FIRST and FIRST.home are class IIa, CE-marked medical devices (MDR 2017/745). Some of the described features may not be approved for use in your country/region. Please contact your local distributor for further information.


Product features

  • Stand-alone, truly portable system
  • Battery powered, Weight <500 gr
  • Simple 10 “accepted tidal breaths” measurements and session with automatic discard of artefacts
  • Compliant with the latest international standards of the European Respiratory Society (ERS).
  • Color coded results for easy immediate evaluation.

Measured parameters

  • Lung function by oscillometry (FOT): within-breath (Total, Inspiratory and Expiratory) Resistance and Reactance, tidal Expiratory Flow limitation (ΔXrs, patented), with color coded normal ranges.
  • Breathing pattern: Minute ventilation (VE), tidal volume (Vt) and respiratory rate (RR).
  • Saturation and Heart rate (spot check).

Fields of application

Combined detection of airway obstruction, tidal expiratory flow limitation, saturation and heart rate in asthma, COPD and patients with multiple comorbidities, pulmonary rehab and neuromuscular disorders.

Quickly and accurately measure of the respiratory response to any therapeutic treatment aimed at reducing airways obstructions, even at the bedside.

Ideal for: Private clinics, specialists offices, rehabilitation, hospital wards, primary care, general practitioners, family pediatricians, diagnostic centers, occupational medicine for on-the-field measurements.

The specialized version of FIRST device designed for home remote monitoring programs

With FIRST.home, healthcare professionals can remotely monitor patients’ respiratory health while also collecting valuable information through symptom questionnaires. This allows for a comprehensive understanding of patients’ conditions and enables timely interventions based on real-time data.

Ideal for:

  • COPD patients at risk of hospitalization
  • Home monitoring programs for post-transplant patients
  • Patients with cystic fibrosis