Mask wearing

1 paper1 finding

Outcomes

1

Blood pH

downin humans1

1 study

Mask wearing decreases blood pH in humans.
“Across multiple studies, mask wearing increases inhaled CO2 concentrations and produces small but measurable reductions in blood pH in some conditions.”
Reviewin mask wearing
Physiological responses to mask-associated CO₂ exposure: a narrative review of acid-base balance, aging, and amyloidogenic stress
Frontiers in public health2 Mar 2026

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Frontiers in Public Health18 Mar

Physiological responses to mask-associated CO₂ exposure: a narrative review of acid-base balance, aging, and amyloidogenic stress

ReviewMechanisms