“…and other disinfectants which are commonly used in the treatment of the interior of air• craft, and he considers that patients known to be sensitive to these substances should be advised not to travel by air. Weiller (1958) believes that patients with any considerable degree of atelectasis should be regarded with caution, and he goes so far as to state that all cases of atclectasis maV constitute contra-indications to travel by air unless there are special circumstances. This appears to be a very sweeping assertion.…”