An air dryer might cause about 0.3 bar pressure drop in your compressed air system. Basically this means that you have to run your compressor at a higher pressure. This of course will result in more energy consumption by your compressor.
Dressing for a gala event is rather simple. It is typically a formal wear occasion. For men, that equates to a tuxedo or at the very least a suit and tie. For women, formal wear is typically a long gown with high heels, matching accessories and jewelry.
White dinner jackets can be worn to any black-tie occasion in hot weather. See Warm-Weather Black Tie for the complete etiquette of this natty variation. When wearing a tuxedo, never, ever refer to yourself as a penguin or your clothing as a monkey suit. Black-tie dressing should be about elegance and confidence..