HOLY BASIL also known as Tulsi, is used for blood purification, respitory support and mucous balance.  Neem supports immune system funciton and balnce in the upper respitory tract.Long pepper helps in secretion of digestive juices and is useful in supporting upper respitory function.  Turmeric supports  your immune system response and recharges the antioxidant process.  Holy basil, neem and turmeric together support healthy levels of mucus and balance in the upper respiratory tract when exposed to airborne pollution and other challenges.