These humidifiers are beneficial for your skin and respiratory system. As well as being great for the health of plants and protecting furniture, they guard against drying out when you have your heating on. Radiator humidifiers are the most environmentally friendly humidifiers in existence! Although they don't use any electricity, they work whenever you want them to, especially useful for the heating season and the air is driest. To use simply fill the container and hang them on a radiator. When it heats up, the water evaporates and is released into the air negating the dryness caused by the heat. Its flower design gives you a stylish look that introduces elegance to your radiator. The flower design may vary.