免费黄色小网站-免费黄网站在线看-免费簧片在线观看-免费精品国产日韩热久久-久草小说-久草香蕉视频在线观看

Purification fan box (high-efficiency purification and silent fresh air fan)

● Detachable frame type: inner and outer layers are made of high-quality color steel plates, with humanized design and beautiful appearance.

● Triple filtration system: provides a steady supply of clean air to the room.

● Super noise reduction: embedded with environmentally friendly sound-absorbing and heat-insulating materials to reduce wind noise and lower energy loss.

● Branded fan: fluid volute design, low noise, energy saving, high efficiency and stability.

● Twist-type door buckle: easy maintenance.

● Three-level control: high, medium and low air volume adjustment (limited to 220V equipment, 380V is single speed).