Heatwaves - periods of abnormally hot and usually humid weather, are among the most dangerous natural hazards. They appear to be increasingly frequent. Air conditioners - at home, work, or in vehicles - have advantages ( cooling and filtering out atmospheric pollutants ), but also disadvantages -low RH with mucous membrane irritation and breathing difficulties; perhaps also colds and chest infections including, uncommonly, Legionnaires’ disease/pneumonia.
We are still in the extreme heat of this El Nino thing.. We have A/C here in this native house of ours but rarely turn it on as there is no need..
The way Filipino`s build houses here is crazy IMO.. Its similar to how I would design a solar oven.. Most of them are sick...Sick of high bills.