Abstract: A food cleaning device has a housing, a liquid inlet, a magnetizing device and an ozone generating device. The housing has a space for containing liquid and an open top communicating with the space. The liquid inlet defined in the housing and communicating with the space. The magnetizing device is attached to the liquid inlet to magnetize the liquid led into the housing through the liquid inlet. The ozone generating device is mounted on the housing and is connected to the space in the housing to generate ozone supplied to the space in the housing. Accordingly, sterilizing, deodorization and cleaning effects are provided to foods with ozone generated by the ozone generating device.

Abstract: An electromagnetic shielding device has a bottom layer, a shielding layer and a top layer. The shielding layer is mounted between the bottom layer and the top layer and is made of metal filaments and textile fibers. The metal filaments and the textile fibers of the shielding layer are blended and formed into a mesh. The electromagnetic shielding device in the present invention may be made into patches or forms that can be adhered to electrical and electronic equipment, or adapted for use in clothing.