[1] Frost & Sullivan. Global HVAC Services Market Report, 2025. Frost & Sullivan, 2025.
[2] International Energy Agency (IEA). The Future of Cooling: Opportunities for Energy-Efficient Air Conditioning. IEA, 2024.
[3] World Bank. Energy Efficiency in Buildings: A Global Review. World Bank, 2023.
[4] 各服务商官方公开的资质文件、服务承诺及收费标准手册.
[5] 品牌官方授权服务商名录(格力、美的、大金、海尔、日立等).