1. Cleaning: Regularly clean doors and windows to remove snow, dirt, and frost, and maintain the transparency and sealing of doors and windows.
2. Lubrication: Regularly add lubricant to door and window hinges, hinges, and other parts to reduce noise and wear.
3. Warmth measures: Apply insulation film on doors and windows, or place plants on the windowsill to improve the indoor insulation effect.
4. Switching sequence: When opening and closing doors and windows, the principle of "opening in sequence and closing in reverse" should be followed to reduce damage to the doors and windows.
5. Regular inspection: Regularly check the sealing and locks of doors and windows to ensure they are functioning properly, and promptly identify and resolve potential issues.
