Best humidity level for lung and sinus problems during the winter months?

The ideal humidity level for alleviating lung and sinus problems during the winter months is typically between 30% and 50%. Maintaining this range can help prevent the air from becoming too dry, which can irritate the respiratory system and exacerbate symptoms. Using a humidifier can be beneficial, but it's important to monitor humidity levels to avoid excessive moisture, which can promote mold growth and other allergens. Regularly checking and adjusting humidity levels can contribute to better respiratory health during colder months.