Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:

Create a detailed description for the following product: A1, belonging to category: Air Purifier

### Response:
Inspired by the Chinese snow mountain Yulong, the design of the A1 air purifier is defined by simple elegance. The air duct is seamlessly enclosed by a conical all-white case. This coherent overall picture is complemented by a high degree of functionality: the device can be switched on and off by a single touch.  A circular LED light informs users about the current air quality by changing between three different colours depending on the room climate.
### End