['Gee', 'Gea', '6S', 'Ventilation', 'cequirements', 'in', 'buudie~L', 'a', 'igs', 'Such', 'as', 'those', 'ia', 'the', 'standard,', 'and', 'any', 'criterios', 'level', 'of', 'acceptance', 'has', 'been', 'vague.', 'It', 'is', 'noteworthy', 'that', 'some', 'am', 'continuously', 'enters', 'buildings', 'adventitiously', 'through', 'unseen', 'apertures,', 'doors,', 'etc.', '(ASHRAE,', '1981}', 'Such', 'infiltration', 'increases', 'the', 'actual', 'ventilation', 'tate', 'by', 'a', 'variable,', 'but', 'often', 'considerable,', 'amount', 'A', 'building', 'with', 'a', 'design', 'ventilation', 'tate', 'of', '$457!', 'per', 'occupant', 'may', 'readily', 'have', 'an', 'actual', 'rate', 'of', '7.5', '737!', 'per', 'occupant,', 'fh', 'a', 'socent', 'field', 'experiment,', 'Duffee', 'et', 'af.', '(19801,', 'using', 'methodology', 'very', 'similar', 'to', 'that', 'used', 'here,', 'measured', 'an', 'average', 'butanol', 'level', 'of', '27', 'ina', 'variety', 'of', 'fonsmeking', 'spaces', '(classrooms,', 'hospital', 'rooms,', 'nurses', 'station).', 'Visitors', 'assessed', 'acceptability', 'at', '75°.', 'This', 'degree', 'of', 'acceptance', 'falls', 'reasonably', 'close', 'to', 'expeccations', 'derived', 'from', 'our', 'results', 'and', 'lends', 'en-', 'couragement', 'to', 'the', 'conclusion', 'that', 'acceptance', 'measured', 'in', 'the', 'context', 'of', 'our', 'chamber', 'may', 'gen-', 'eraiize', 'to', 'fleid', 'situations.', 'TOBACCO', 'SMOKE', 'ODOR', 'Menod', 'Facilities.', 'Facilities', 'included', 'the', 'chamber,', 'olfacto-', 'meters,', 'cic.', 'used', 'in', 'the', 'previous', 'experiment.', 'In', 'order', '19', 'monitor', 'paysical', 'and', 'chemical', 'contaminants', 'during', 'cigarette', 'smoking,', 'a', 'Scm', 'diameter', 'PVC', 'tube', 'led', 'about', '15/37‘', 'from', 'inside', 'the', 'chamber', 'to', 'an', 'instru-', 'ment', 'rack', 'outside.', 'The', 'instruments', 'included', 'a', 'carbon', 'monoxide', 'analyzer', '(Ecolyzer,', 'Energetics', 'Science,', 'Inc.),', 'a', 'particle', 'mass', 'monitor', '(Model', '3200A,', 'Thermo-', 'Systems,', 'Inc,', 'and', 'a', 'condensation', 'nuciei', 'monitor', '(RICH', '100,', 'Environment', 'Onej.', 'The', 'carbon', 'monoxide', 'analyzer', 'was', 'calibrated', 'before', 'each', 'session.', 'Air', 'sampled', 'by', 'the', 'analyzer', 'was', 'prehumidifiec.', 'The', 'particle', 'mass', 'monitor', 'employed', 'two', 'piezoeleccric', 'quartz', 'crystals', 'as', 'sensors.', 'These', 'were', 'factory', 'calitrated.', 'The', 'instrument', 'measured', 'total', 'mass', 'of', 'parceles', 'in', 'the', 'size', 'range', '0.01-20', 'um.', 'Its', 'output', 'is', 'reporced', 'here', 'as', 'total', 'suspended', 'particulate', 'mass', '(TSP:', '  ', 'Subjects,', 'Ninety-two', 'persons', 'participated.', 'Procedure.', 'Variables', 'of', 'interest', 'included', 'three', 'rates', 'ofsmoking', '=,', '3.', 'and', '£6', 'cigarettes', 'per', 'hour,', 'six', 'Cates', 'of', 'ventilation', '134,', '8,', '10,', '17.5,', 'and', '34', '757!', 'per', 'occupant),', 'and', 'the', 'four', '=nvironmental', 'conditions', 'of', 'the', 'previous', 'experiment', '7siry-cight', 'combinations', 'were', 'studied.', 'Each', 'led', 'to', '2', 'Sunction', 'that', 'described', 'bow', 'odor', 'varied', 'aver', 'a', 'period', 'that', 'began', 'with', '1S-min', 'of', 'nonsmoking', '   ', '©', 'Oigerertescar', ' ', '  ', 'tb', 'sec', 'acre', '    ', 'fe', '   ', ' ', 'Busanor', 'Lever', 'ar)', ' ', ' ', 'pon', ' ', ' ', ' ', 'Fig.', '6', 'Bucanol', 'matching', 'functions', 'obtained', 'durng', 'the', 'lowest', 'and', 'highest', 'ventilation', 'rates,', '(5.5', 'and', '44', '/', "s~')", 'per', 'occugant,', 'respect-', 'ively.', 'Butasol', 'level', '{port', 'number', 'of', 'offactomete', 'is', 'shown', 'on', 'ieft', 'ordinate', 'and', 'ppm', '(v/v', 'in', 'air)', 'is', 'shown', 'on', 'might', 'ordinate.', 'Smoking', 'began', 'in', 'the', 'interval', 'between', 'L5', 'and', '20', 'mun', 'and', 'ended', 'in', 'the', 'interval', 'between', '7§', 'and', 'Mmm', '-', '_S000T', '8902', ',']