... type of filtration mesh , specially dislodging formaldehyde ,ammonia and purifying the floating dust.6)Run in low noise even ... .17)Using new material ABS, fashion and durable .18)silence , with low noise , comfortable and healthy.19)anion function to make health ... cooling, no fluorine pollution5) Water-sprayed humidifying, collect dust and undesirable odor6) Cross flow wind way, large air delivery 7 ...