Materials: The High-quality nasal aspirator with a high-quality silicone nozzle and environmentally friendly syringe, is non-toxic, tasteless, safe, and comfortable, and can be safely used by children. Effective Cleaning: The water from the nasal irrigation device flows through the nostrils, the pressure is controlled, the water flow is steady and calming, and it softens the nasal cavity to avoid pressure imbalance: no Burning, No Stinging, No Drowning Feeling. How to Use: Open the package, remove the syringe and the silicone nasal cleaning head, and draw the normal saline into the syringe. Hold the syringe in your hand and place the nasal aspirator into the nasal cavity; tilt your head slightly forward, open your mouth and push the sail out. Helping Children and Adults Breathe Better: Syringe nasal washes can be used for cleaning and caring for childrens nasal passages, flushing blocked nasal passages with a runny nose, and cleaning for occupational dust inhalation. Pack: 4 x Portable infant nose cleaner. Children under the age of 4 and those with nasal bleeding are contraindicated. For others, please follow the doctors advice.