Question about Xiaomi Smart Air Purifier 4 Pro

Is there an air purifier that can be used with fragrance?

The appliance is not specifically designed for use with fragrances. It contains an activated carbon filter that eliminates odours, but there is no function specifically designed for use with fragrances. If you want to use fragrances, you should make sure that they do not interfere with the filters or the function of the appliance.