3 min clinical reading
Healthy Homes Magazine
Official Environmental Health & Bio-Climatic Architecture Clinical Report
Document ID: #HH-3-2026
Printed: September 30, 2026 - 07:03 EST
NDIR vs MOX Sensors: Is Your Air Monitor Measuring Real CO2?
MA
Marcos Valdés
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635 Reads
Many commercial gadgets use metal-oxide semiconductor (MOX) sensors that only calculate an estimated carbon dioxide reading (eCO2) based on volatile organic compounds. A scientific-grade NDIR sensor measures direct infrared light absorption at 4.26 µm wavelength to count actual CO2 molecules with laboratory fidelity.
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Clinical IAQ Mitigation & Architecture Protocol
Prescribed by Healthy Homes Magazine Environmental Engineering Committee
SaniGuardian Verified
Recommended Sensor Telemetry:
- Continuous NDIR Dual-Beam CO2 monitoring (< 800 ppm target)
- Laser PM0.1 / PM2.5 particulate filtration with HEPA H13
- SaniGuardian Sub-slab / Attic Moisture Sockets (HR < 50%)
- Early Warning Water Leak Detection Sensor Array
Architectural Attestation / Sign-off:
Licensed IAQ Inspector / Architect Signature
Date