With winter’s arrival, maintaining good indoor air quality becomes essential as people seek refuge from the cold. Spending extended periods indoors necessitates proactive measures to prevent the circulation of respiratory viruses and pollutants.

adequate ventilation and responsible heating practices are paramount. Respiratory infections, a primary cause of winter hospitalizations, are often linked to indoor air pollution, solid fuel use (like firewood), and indoor smoking.

The Risks of Indoor Air Pollution

Approximately 42% of lower respiratory infections are connected to indoor pollution sources. Prolonged exposure can lead to both acute and chronic respiratory diseases, especially when natural ventilation is limited. This creates an environment where particles, bacteria, fungi, viruses, and allergens accumulate, increasing health risks.

Continuous exposure to these pollutants can cause both acute and chronic respiratory diseases.

Poorly maintained heating and ventilation systems in workplaces can also contribute to indoor pollution.

Expert Recommendations for Healthier Homes

To minimize these risks, Sara Contreras Sandoval, director of the Nursing School of the Andrés Bello University, recommends several everyday measures:

• Limit the use of catalytic paraffin or gas stoves, using them only briefly with cross ventilation.
• Avoid using internal combustion stoves overnight due to the risk of toxic gas accumulation.
• Ventilate your home daily to improve indoor air quality.
• Maintain appliances like kitchens, heaters, and stoves, and ensure kitchen ventilation while cooking.
• Avoid products that cause respiratory irritation, such as talc, paint vapors, fumes, or insecticides.
• Keep the ambient temperature between 20°C and 22°C (68°F and 72°F) for a healthy thermal balance.
• Use dry, quality firewood and maintain open heater circulation to minimize particulate matter emissions.
• Improve home thermal insulation to preserve heat and reduce heating needs.

Additionally, avoid exposure to cigarette smoke, especially in enclosed spaces and around vulnerable individuals.

when cleaning, use wet cloths instead of sweeping to prevent dust dispersion.

The Role of Diet and Immune System

In addition to environmental measures, a diet rich in zinc and vitamin C can strengthen the immune system, aiding in disease prevention. Foods like fish, chicken, red meat, kiwi, citrus fruits, and berries are beneficial during colder months.