The Obonny is IPX6-rated waterproof and can be rinsed under a faucet, but prolonged immersion while on is not recommended. Before and after use, simply rinse under the faucet and air dry or wipe clean.
Please note: Do not pick or squeeze the sucking port with your fingernails, it may cause the sucking port to rupture, it is recommended to use cotton swabs to clean it.