港鐵故障消息 MTR Service Update
於 7 月 至 9 月期間，
市區綫車站的通風系統，會於室外氣溫達到 32 度時，撥至全速運轉
其他行車綫的通風系統，則繼續以全自動方式操作，以維持舒適的候車環境 #MTR
From Jul to Sep,
Ventilation System at Urban Lines’ stations will be switched to max performance when ambient temperature has reached 32C
Fully automated operations will remain for ventilation systems on other running lines to maintain a comfortable environment
