When smoke is caused by cooking burning or something similar, please do not open the door to your apartment to clear the smoke. The smoke alarms in the passages are connected to the fire brigade and may be set off by dust or smoke, automatically calling the brigade to attend. Open your balcony door or windows only.
False alarm call-outs are chargeable at many hundreds of dollars which may be on-charged to you.
Obviously this is not the case if a genuine fire occurs.