美国采购需求：精油扩散器、油扩散器、冷雾加湿器、空气加湿器、室内加湿器、暖雾加湿器

I'm in the market for a compact room humidifier that has the capability to refill directly from a water line. This feature is crucial for us, as we want something that minimizes the need for manual refills while still maintaining an optimal humidity level in our spaces. Could you please provide detailed product specifications, including dimensions and power requirements? Additionally, I'd like to know about pricing options and any available models that fit these criteria. If there are variations based on features like capacity or design, I'd appreciate information on those as well. Looking forward to your prompt response!