Measurement method

Non-dispersive infrared (NDIR) method

Also: NDIR

A measurement technique that determines gas concentration — carbon dioxide above all — from the absorption of infrared light.

G-0033 · Updated 5 September 2026 · Coridum Research

In the literature

  1. Evaluation of carbon dioxide sensors for indoor air quality monitoring (2019). DAAAM Proceedings. doi:10.2507/30th.daaam.proceedings.061 CKB 0741
  2. Honan et al. Low-Cost CO2 Sensors: On-Site Performance Evaluation and Co-Location Correction Procedure for Reliable Ventilation Assessments in Schools (2026). Sensors (Basel). doi:10.3390/s26041265 CKB 1201
  3. Multivariate structure and time-segmented exposure characteristics of indoor air quality in childcare centers (2026). doi:10.1038/s41598-026-45168-y CKB 1111

Studies in the Coridum Knowledge Base in which this term is used. The definition follows standard usage in WHO, ISO and textbook sources; it is not quoted from these papers.

CKB = document number in the Coridum Knowledge Base, our curated library of peer-reviewed studies. Follow the DOI for the original paper.

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Coridum Research. Non-dispersive infrared (NDIR) method. Coridum Knowledge G-0033, 5 September 2026. https://coridum.com/k/G-0033/

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