Past Events

Hong Kong No Air Con Night 2019 from 7 p.m., 5 Oct to 7 a.m., 6 Oct

Hong Kong No Air Con Night 2019

PolyU has pledged to support the Hong Kong No Air Con Night launched by Green Sense from 7 p.m., 5 October to 7 a.m., 6 October 2019 to bring out the importance in reducing greenhouse gases and saving energy through the wise use of air conditioning.


Why are we doing this?

Since 2010, PolyU has been a trustful partner to this meaningful event and we believe we have the right cause. It is not difficult to understand air con cooling translates into great electricity consumption and brings impacts to our Earth. Yet we must not forget that there are good and clever practices to stay cool and use energy more wisely. Together we can reduce our reliance on air conditioning and help to conserve energy.

How can you help?

You can support the campaign in the following respects: 

  • Switch off the air conditioners for 12 hours from 7 p.m., 5 October to 7 a.m., 6 October at your home or student hostel and turn off unnecessary ones in your office;
  • Share the message with your friends, colleagues and family; and
  • Pledge to support the event by filling in the Green Sense’s online pledge form at

You can find more information about the event from the dedicated website at