Aerangis orchids are native to tropical and subtropical regions of Africa, so they require warm temperatures and high humidity to thrive. Temperatures should be kept between 65-85°F (18-29°C) during the day and a minimum of 60°F (15°C) at night. Humidity should be maintained around 50-70%, with regular misting and use of a humidifier if necessary. Air circulation is also important in preventing fungal or bacterial growth, so make sure to provide adequate ventilation.