Development of Legal Systems in China’s Ventilation Industry

In 2018, China’s ‘Three-year Action Plan for the Blue Sky Defense War’ started well. The ratio of clean sky days in 338 prefecture-level cities increased year-on-year, recording 79.3% throughout all of China, and PM2.5 density dropped by over 8%. In 2019, the country will continue to focus on ecological improvements in three key regions.