Irregular or disrupted breathing (2-channel Airflow) AirMax captures airflow from each nostril independently, tracking breathing patterns including periods of reduced or paused airflow. These patterns may correlate with restless sleep, frequent waking, morning headaches, and daytime fatigue.

Heart rate and variability (PPG) A light sensor detects your heart rate and heart rate variability, showing how your autonomic nervous system responds during rest. Heart rate patterns - like slowing down during breathing pauses then spiking upon resumption - may correlate with breathing variations, while HRV patterns may correlate with recovery quality, stress levels, and sleep effectiveness.

Blood oxygen variability (Red/IR PPG channels) Unlike traditional pulse oximeters that heavily average readings, AirMax's proprietary algorithm calculates oxygen saturation beat-by-beat while flagging unreliable data from motion or noise. Measuring at the nasal ala (nostril) captures oxygen changes faster than finger-based sensors, revealing transient fluctuations that may otherwise be missed, and correlate with breathing variations, sleep quality, and morning grogginess.

Restlessness and head position (accelerometer) A precision accelerometer tracks movement, arousals, and head tilt during sleep. Frequent movement may indicate disturbed sleep that could improve with dietary or lifestyle changes. Head position tracking helps identify if breathing irregularities occur primarily in certain positions - whether on your back, side, or stomach - revealing which sleep postures to potentially avoid.

Snoring and environmental sounds (microphone) AirMax maximizes your phone's microphone sensitivity and records peak sound levels to capture snoring intensity and ambient noise like traffic, HVAC systems, or household disturbances. Loud or persistent snoring may correlate with breathing variations, while environmental noise may correlate with fragmented sleep and frequent awakenings.

EEG (via ZMax sync) AirMax respiration based data can be synchronized with EEG data coming from the ZMax headband

• Miniaturized & Easy to Wear: Lightweight, non-intrusive design fits over the nose for effortless overnight use.
• Multi-Sensor Precision: Measures airflow, SpO₂, movement, head tilt, and sound for a complete picture of sleep physiology.
• Objective Data Collection: Captures breathing patterns, oxygen variability, snoring, restlessness, and environmental disturbances - data STOP-BANG and questionnaires can't provide.
• Scalable for Research: Ideal for perioperative, cardiovascular, metabolic, sleep, and population studies - works in labs, at home, or multi-site protocols.
• Customizable Alerts: Gentle vibrations or phone prompts for distress, sleep position, breathing pauses, or snoring.
• Easy Data Access & Sharing: EDF file format compatible with Python, Matlab, C#, and can be shared via phone apps instantly.
• ZMax Integration: Sync respiration with EEG data for complete multi-modal research.

Many clinical and research protocols use the STOP-BANG questionnaire to quickly flag participants at elevated risk for obstructive sleep apnea (OSA). STOP-BANG works because it is simple, validated, and easy to deploy at scale. Its limitation is equally well understood: it provides risk classification, not physiological evidence.

AirMax enables researchers to collect continuous, objective respiratory related signals that are not captured by questionnaire-based screening tools such as STOP-BANG, including event counts, oxygen saturation trends, temporal patterns, and night-to-night variability.

• Perioperative and anesthesia research: AirMax can be used to explore relationships between overnight respiratory physiology and postoperative observations in research settings, supporting hypothesis generation beyond self-reported risk scores.
• Cardiovascular and metabolic research: Quantitative physiological features (e.g., oxygen saturation dynamics, breathing pattern variability) can be analyzed alongside cardiometabolic variables to investigate associations in observational studies.
• Sleep and population-based studies: Wearable-derived data supports large-scale data collection and exploratory phenotyping in research cohorts, reducing reliance on resource-intensive laboratory studies.
• Large or at-home research cohorts: AirMax provides a scalable, low-burden method for collecting longitudinal physiological data to complement existing screening instruments.
• Studies incorporating STOP-BANG: AirMax does not replace questionnaires or redefine risk classification. Instead, it provides independently measured physiological data that may be used for validation analyses, subgroup exploration, and data-driven interpretation within research protocols.

AirMax outputs data in plain EDF file format. EDF data can be opened with any EDF viewer, or with widely available libraries in Python, C#, Matlab etc.

AirMax is extremely miniaturized, and weighs only a few grams. It is applied over the nose easily.

AirMax can provide gentle alerts using an on-board vibrating motor or the mobile phone's speaker to prompt brief arousals. Possible configurations include:

• Distress alerts: when heart rate exceeds a predefined threshold, for instance during a nightmare or sleep paralysis, an alert prompts arousal.
• Sleep position alerts: brief vibrations prompt the user to shift positions when remaining in a particular sleeping position for an extended period, which some users find helpful when certain positions affect their breathing comfort.
• Breathing alerts: alerts prompt arousal when breathing pauses are detected, before SpO₂ levels change.
• Snoring alerts: alerts prompt arousal when snoring is detected.

This device is not intended to diagnose, treat, cure, or prevent any disease or medical condition.

In the morning, AirMax data can be easily shared using any app on your phone (e.g., email, WhatsApp, Telegram, etc.).

AirMax respiration data can be synced to real time EEG data collected with ZMax Total. This requires ZMax to be running in wireless mode, so that packet timing can be shared.

The first prototypes of AirMax are expected to become available in Q1 2026 to selected research organizations. We will ship initial prototypes on a first come, first served basis. Please contact to receive a sample of collected AirMax data.