Moisturizing effect: The spray helps moisturize the nasal passages, which is essential for maintaining nasal health and preventing dryness and discomfort. Cleansing action: By washing away bacteria and pollutants, the spray helps keep the nasal passages clean and reduces the risk of infections. Protection against airborne infections: Moisturizing the nose can help guard against airborne infections, such as the common cold, especially in crowded areas or when using public transport. Overall, FESS Nasal Defence Saline Spray provides a convenient and effective way to relieve nasal congestion and maintain nasal health in various environments. It's suitable for regular use and can be especially handy during times when you're exposed to dry or crowded conditions.