In cities with poor air quality, newly renovated homes, or enclosed spaces like basements, the issue of subpar air quality often leads to health concerns such as mucous membrane irritation, fatigue, and allergies.

Opening windows for ventilation, as a common method of natural ventilation, has held an indispensable place in people's daily lives since ancient times.

In today's fast-paced urban life, the home environment has become a key focus for people.

In daily life, we often intuitively sense the humidity in indoor air. Whenever the weather turns overcast or it rains, we invariably feel less refreshed and comfortable.