So far I haven’t got experience in finding of 小強 老鼠 and their family in fresh air duct as duct environment is not good for小強 / 老鼠; haven't any food material temperature keeping in low-level (normally 14-16 deg.C for fresh air duct).
係喎燒炭事件真係冇咩可能發生倒喎 :roll: but if fire really can increase fire to big wo... :?: 呀 :em07: if really fire how can anyone to do r :?:[/quote]
fire damper will stop the smoke :em16: . According to photos from kenykl RC main door has smoke-seal which is different to traditional one 8) . Smoke-seal door is a requirement on hotel / apartment buildings.
EXIT light box in staricase all the installations will provide much safe environment.