Airflow sensors are used during sleep studies to measure and monitor the flow of breathing during the night to help clinicians detect sleep disordered breathing. Sleep Review‘s airflow sensor guide is a comprehensive comparison of the major sensors available on the market.

CompanyCadwell Industries IncCadwell Industries IncDymedix DiagnosticsDymedix DiagnosticsSleepSense
Sleepmate Airflow Pressure Transducer + Cannula

Sleepmate CannuTherm Thermal and Pressure Sensors

Lullaby Pediatric
Airflow Sensors

Airflow Sensors
ThermoCan System
Description:Sleepmate Airflow Pressure Transducers are a small single channel sensors. The reusable transducer couple with disposable cannulae with or without filters.Detect apnea and hypopnea with the light and comfortable CannuTherm and disposable cannulas. Touchproof and keyhole connectors available. Dymedix pediatric airflow sensors provide enhanced sensitivity through PVDF technology. They are designed for use with Dymedix iFM, a specialized airflow interface cable that boosts and filters airflow waveforms allowing for more accurate and detailed sensing of airflow activity from neonate and infant patients.Dymedix TriplePlay Airflow Sensors detect three types of sleep disordered breathing events with only one sensor: apnea, hypopnea, and snore. The TriplePlay PVDF technology responds to changes in both pressure and temperature resulting in accurate detection of apnea, hypopnea, UARS, and snore, all with one sensor. 

The SleepSense ThermoCan monitors oral/nasal thermal airflow and nasal pressure simultaneously. Disposable ThermoCan Cannulas are designed with a built-in thermal airflow sensor. ThermoCan Interface Cables have 2 gold pins that insert into the sides of ThermoCan Cannulas at the nares, transmitting the thermal airflow signal to the system and replacing the need for thermistor
Reusable:ReusableReusable and DisposableReusable and DisposableReusable and DisposableDisposable cannula, Reusable cable
Patient Age Range:Infant, pediatric, adultInfant, pediatric, adultInfant, pediatricInfant, pediatric, adultInfant, pediatric, adult
Technology:Pressure transducerThermal and pressure sensorsPVDFPVDFPressure cannula and thermal airflow sensors
Made of:
Plastic casing with
Luer-lock connector
Molded plasticPolyvinylidene fluoride (PVDF)Polyvinylidene fluoride (PVDF)Not provided
Size Options:
One size fits all

Cannulas: adult sizes; CannuTherm: one size fits all

Neonate, infant, pediatric

S, M, L – neonate, infant, pediatric

Child small, child, adult
Application:Standard cannula placement
Plugs into cannula to reduce material in patient’s nares
Standard application
Optional adhesive backing
Designed similar to a regular pressure monitoring cannula and are applied to the patient in the same way.
Warranty (Months):99N/A (disposable sensor); 12 (reusable cable)12 (reusable cable)
12 (reusable cable)
Sample Requests:N/AN/
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The Sleep Review airflow sensor comparison guide was last updated in Oct 2022. This guide was published in the Oct 2022 print edition.