Useful. Fan Wenhua cleaning gel is a cleaning product, which is mainly used to clean stains and oil stains on the surfaces of various items such as homes, offices and automobiles. It has many functions such as decontamination, deodorization and disinfection. This cleaning gel is sticky and can stick to stains and remove them completely. For some particularly stubborn stains, Fan Wenhua Cleaning Gel may need to be used several times to completely remove them. Keep ventilation when using it to prevent inhalation of its odor from causing harm to the body.