Do Humidifiers Cause Rheumatism? Debunking the Myth

Overview

Rheumatism is an autoimmune condition linked to genetics, immunity, and infection—not directly to air humidity. A humidifier only keeps indoor humidity in a comfortable 40%–60% range and won’t cause rheumatism. But excessive humidity breeds mold and dust mites, which can trigger allergies or respiratory discomfort, so control humidity.