All air conditioners produce water and heat as byproducts, but there is such a thing as a portable air conditioner without a water intake hose. One option is to get an evaporative cooler with a water tank that will provide some cooling action. If not, air conditioners do require ventilation hoses and water drain hoses. You need to vent the hot air and let the condensation accumulation drain out. See out best tents with AC ports for easy ventilation.