ANSI/ASHRAE Standard 62.1-2025: Ventilation and Acceptable Indoor Air Quality

What the study found

Specifies minimum ventilation and IAQ requirements for mechanical and natural ventilation systems.

Limitations

Minimum acceptable IAQ does not guarantee optimal cognitive performance or address every contaminant.

Neurodesign interpretation

Ventilation standards are infrastructure. Neurodesign adds the question of what happens to cognition, sleep and perception above the compliance floor.

Possible design implications

Cross-reference every air-quality design claim with both minimum standard requirements and health/cognition evidence.

Why it stays in the corpus

Retain as the current ventilation standard.

Study design

Consensus standard

Population

Building occupants

Setting

Nonresidential buildings

Field

Indoor air quality

Mechanism

Ventilation, contaminant dilution, source control

Spatial variable

Outdoor air, filtration, exhaust, humidity, controls

Keywords

ASHRAE 62.1, ventilation, IAQ, standard