Nose allergies, sneezing and coughing can be caused by air conditioners that are excessively chilly or installed in the wrong location. Manufacturers have developed temperature and air flow controls to eliminate direct, excessively cold currents.
冷氣機應安裝在日光照射不到、通風良好之處，高度最好在 100 至 150 公分間，如此可使冷風下降至地面的距離縮短，空氣循環較佳，就較不會引起「冷氣病」。