Established for 28 years, Elitech has grown from a small hardware company to a global leader in the cold chain industry. Elitech is committed to serving global customers and providing high-quality refrigeration products and advanced monitoring services. Elitech's products are designed to save time and resources while protecting the environment and human health, thereby adding value to products and services.
1. Understanding Nasal Congestion The nasal passages are lined with mucous membranes and tiny blood vessels. When these membranes become inflamed due to infection, allergens, or irritants, they swell and produce excess mucus. This combination of swelling and mucus blocks airflow.