Another thing to remember is the humidity levels. During this period, dendrobiums do not need a lot of moisture. Very little water will be enough to keep their roots alive. Also keep in mind that their roots constantly need plenty of air circulation so you should place them where there is a lot of fresh air.
Remember, that is based on energy usage, not comfort-levels, which are the purpose of having an air conditioner, in my not-so-humble opinion. Fact: At night, the ideal temperature comfort range for Americans drops to 65 to 72 degrees Fahrenheit (or about 87 degrees if you are my wife).
The requirement is still in place to keep the room at a target of 50% RH to reduce the risk of nosocomial infections. To keep the room at 50% relative humidity with the air temperature at 60-64F will require the air to be at a dew point temperature of 40-42F when delivered to the room.With the typical hospital having chilled water at 42-44F, this new requirement is impossible to achieve with what equipment is in place.t recommends the operating room air temperature be 68-75F with a 30-60% relative humidity. To get this condition the air flow is dictated by a recommendation of 15 total air changes per hour, ACH, with 3 air changes per hour with respect to outside air.