Aircon may easy give you sinus problems, stuffy nose and all kinds of cold symptoms, due to the lack of knowledge about cleaning them and servicing them in accordance with user instructions, but even then most do not use them until the average white man who is acclimatised would be well cooked.
An article on the Cons of Air-Con.
It is not only the cost of running an AC, but it might affect your health as well.
http://www.greensingapore.com/Singlenew ... %20air-con
They are probably not connected to the Chinese culture, so I don't expect anything else from their replies
Imagine if the majority was on the same income has Mary, then maybe more would use the aircon more often but i doubt it, becuase they are aware of cold and the activity of qi.
The statistics by the way in household expenditure utilities would shed some light on aircon usage. In which there is 74% ownership Though the majority population is Chinese at 75% and 45% of these are registered at Traditional Chinese Medicine Halls and the practise is nothing cold at all only room temperature, cold is bad and cause inactivity inside the body the qi doesn't flow how it should do.
Though i did ask several grps of kids 6 years ago in fast food outlets why they didn't study at home, and the only replies i had, was their is aircon here, and if they went home their parents wouldn't allow them to use aircon, because it's too expensive for them was one reason the other was that their parents say that aircon is unhealthy.. Now that isn't to say they will not use it if it gets unbearably hot and humid.
SMS seems to have the impression I have said that Chinese do not buy aircons
SE gives the right reasons for not using aircons, when fans can be used...Expats on the other hand with high income probably have the aircon on all the time when they get home, though only if they can afford it. In fact there is a couple of expat families living close by in Landed properties.
I've never seen their doors or windows open, so that probably tells you the type of expat that has the aircon on whole day and night, so good for them they can afford it. Personally I turn it on myself if it's too warm to sleep for 1 hr on the timer, though i also get stuffed nose or the occasional sore throat, and it's cleaned and disinfected on a regular basis. So i prefer not to use it.
Our Indonesian maid was well aware of the health problems of aircon, and she's from a small kampong, and at times even turned the fans off becuase she was too cold.
http://www.articlemotron.com/Article/Wh ... inks/32458