Infrared bearing lamps are popular far infant use. When placed a safe distance from the body and shone on the skin, they radiate warmth to the patient. The advantages of heat lamps are that they are effective and Illuminate the patient for observation or therapy. A disadvantage is that since the skin needs to be exposed, modesty prevents widespread use among adults. (There are, however, used in adult skin- graft operations.) Nurses dislike radiant heat lamps and panels because they tend to heat the entire recovery room and are inconvenient to set up and requires close monitoring of the patient, which increases labor costs. In addition, water baths must be carefully watched for bacterial growth, and they are very expensive to purchase and use.