The product follows a low-energy design and comes with a high-efficiency HEPA filter that can filter outdoor polluted air. It is equipped with a digital intelligent control system, so the air volume can be adjusted according to actual needs and the working time can be set.The LCD panel can display temperature, PM2.5 level, timing, wind speed, and other functional status. In winter, the auxiliary heating function can also be turned on to heat the outdoor air to a certain temperature before entering the room, which can provide indoor comfort without significantly reducing the indoor temperature.