Show ventilating experts seek way to ban odors from rooms swampscott Swamp scott mass engineers may discuss ventilating and air conditioning and use their layman baffling cams to describe the flow of air buts but what most people want nt to know is what to do about odors when they think of ventilating in the meeting of the american society of heating and ventilating engineers here two scientists from Harv ards school ot of public health disclosed their studies about odor removal from rooms and auditoriums prof C P and W N witheridge showed that there is a characteristic human smell which can be detected in a room after the occupants have left it this human odor is apparently highly complex unstable and rapidly breaks down but there is a certain minimum amount of the odor let left in a room which will last for days until it is thoroughly ventilated the findings show that where numbers of people gather large rooms should be used for great size acts as a sort of reservoir of odor which allows the initial decrease in intensity of odor to occur harmlessly sharply in contrast they report id ad is the characteristic of tobacco smoke which becomes more noxious with time up to periods of three hours after active smoking has ceased the rise in odor intensity of tobacco smoke is more offensive than the odor of fresh smoke it would thus appear state the harvard scientists that smoking rooms should be small with very rapid ventilation for the best remits |