first hand exchange
Talk to colleagues first about why air conditioning is needed. Understand their concerns and work together to find a win-win solution.
seek a compromise
Set reasonable opening time, temperature and air volume to make everyone comfortable.
Help your boss.
If communication fails, please ask your boss or management to help mediate!
change of heart
Wear cool clothes or use a personal electric fan or cooling spray to cool down.
Change the place
Really not, find a cool conference room or lounge!
skill
Don't forget that respect and understanding are the key to solving problems. Communicate calmly and politely, and you will find a good way!