1. Safe and comfortable: Nasal aspirator is completely safe and hygienic, avoid damaged baby's delicate nasal mucosa. 2. USB charging: This Nasal aspirator is rechargeable, economical and environmentally friendly, can work for more than one hour after fully charging. 3. 3 suction levels: This upgraded electric nose cleaner comes with 3 adjustable suction levels which have strong power to sucked out the mucus. 4. Ergonomic design and easy to use: Simply push the on the button, shove it up the baby's nose and wait for the snot to drain. 5. Easy to clean: The baby nose suction is very easy to take apart to clean and reassemble after each use. 6. Anti-reflow design prevents mucus from flowing back into the nasal cavity Instructions for use: 1. Before use, soak the nozzle in hot salt water for 10 minutes, then disinfect. 2. Install the nasal aspirator and turn the switch on to activate. 3. If the nasal cavity is dry, spray it into the nostrils with saline or nasal spray. The nasal spray should be exposed to the nasal cavity for 4 to 5 minutes.