The wristband is water-resistant, not waterproof. So if it gets damp or gets splashed with water while you are washing your hands or doing the dishes, you won’t cause any harm to the bracelet. But it is  recommended that you remove the wristband when you go swimming or take a shower or hot bath. If you are interested in a waterproof EMF protection wristband, you want the Mobility+ wristband. It offers the same level of quality protection against all the sources of EMF including cell phones, cell phone towers, wireless devices, you name it.