Definition 1: EER, energy efficiency ratio: Is the measure of air conditioner efficiency at maximum air conditioning load. It is measured by ratio of Btu/hour of cooling or heating load, to watts of electrical power input. The unit is in Btu hr-1 W-1. Definition 2: SEER, seasonal energy efficiency ratio: The measurement units of SEER is exactly the same as EER, but the difference lies in the data used for the measurement. Values for SEER, is determined through averaging readings of different air conditions, to represent air conditioner efficiency throughout the season.
As opposed to a djellaba, a kaftan is not worn outside the house. As a foreigner in Morocco, you can wear any type of traditional Moroccan clothing. It is perfectly acceptable and even well appreciated. In winter, a man can wear a woolen djellaba over his clothes to keep warm.
In smaller towns, most people wear clothing that falls past their knees and elbows, and women often cover their hair. In large cities like Cairo, people dress more like their counterparts in the United States or Europe. Since Egypt is a very hot place and is mostly desert, people tend to wear light, cotton clothing.