The unique "Hui Nan Tian" (Returning South Wind) phenomenon in Southern China often brings a sharp increase in humidity. Walls, floors, and even clothes become damp, which is not only uncomfortable but also promotes the growth of bacteria and mold. When a temperature and humidity sensor issues an alert, it reminds us to take timely measures against excessive moisture.

To effectively handle excessive humidity, we can use the following methods:

1. Physical Dehumidification:

● Strategic Ventilation: Open windows only when outdoor humidity is lower than indoors. Conversely, close them tightly when outdoor humidity is high to prevent moisture from entering.

● Use Dehumidifiers: These are the most effective devices for rapid moisture removal. Choose the appropriate power based on room size.

● Moisture Absorbers and Desiccants: Boxes and packets containing moisture-absorbing materials can be placed in small spaces like wardrobes and shoe cabinets.

2. Chemical Dehumidification:

● Use Lime and Calcium Chloride: Both substances have strong hygroscopic properties and can help dry out damp indoor air when placed in problem areas.

3. Preventive Measures:

● Regular Cleaning: Clearing standing water and stains from corners and floor gaps helps prevent mold growth.

● Maintain Basic Airflow: Even during damp seasons, try to maintain controlled airflow to reduce moisture accumulation.

● Use Damp-proof Materials: Choose waterproof coatings and moisture-resistant gypsum boards during renovation to lower baseline humidity levels.

Safety Tips: Clean dehumidifier water tanks regularly to prevent bacteria, and always wear gloves/masks when handling chemical desiccants. Vulnerable groups should stay warm and dry to avoid health issues triggered by dampness.