Normal Composite Compositional Profile of Human Expired Air 
Acetone 
Isoprene 
Acetonitrile 
pTolualdehyde 
Toluene 
P,SDimethylhexane 
Ethyl Alcohol 
Acetaldehyde 
Dichloronitromethane 
2,2,4-Trimethyl-l-pentanol 
n-Propyl acetate 
2,2-Dimethyl-l-pentanol 
Cyclohexane 
Hexane 
Thiolacetic acid 
I-Heptanol 
Cyclohexyl alcohol 
Benzene 
2-Ethyl-l-hexanone 
2,3,5 Trimethylhexane 
Ethyl Imercaptopropionate 
Cycloheptatriene 
p-Xylene 
n-Butyl alcohol 
3,4 Dimethylhexane 
Limonene 
Isooctyl alcohol 
Methyl-n-propyl sulfide. 
2 - Ethyl-4-methyl-1-pentanol 
Neopentyl acetate 
Trans4nonenal 
n-Heptane 
Ethylbenzene 
5-Methyl4heptanone 
Dimethylsulfide 
P-Methyl-l-pentanol 
pl)ichlorobenzene 
Trans-3-hexen-l-ol 
Capryl alcohol 
Mesitylene 
n-Hexylmercaptan 
3,4-Dimethylheptane 
2,3,3,4-Tetramethylpentane 
1Chlorohexane 
Dichloroacetylene 
2,P-Dimethyl-l-octanol 
2,2,3,3 - Tetramethylhexane 
o-Xylene 
2,3,3 - Trimethylhexane 
Isopropylalcohol 
2,2-Dimethyl-l-hexanol 
5-Ethyl-l-butanol 
Z,P-Dimethylheptane 
Furan 
Naphthalene 
Thiocyclopentane 
Cyclopentylalcohol 
n-l\lonane 
Ethyl phenyl acetate 
n-Amyl alcohol 
Z,CDimethylheptane 
5-Nitropropane 
2,6 - Di-tert-butyl-4-methyl-phenol 
Methyl-tert-butyl-ketone 
Di-Tert-butyldisulfide 
2,2-Dimethyl-Shexanone 
1,2-Diethylbenzene 
2,5-Dimethylheptane 
2-Methyl-3-heptanone 
Isobutyl alcohol 
m-Xylene 
2,2,5,5Tetramethylhexane 
n-Decanal 
SMethyl-2-butanol 
Propiophenone 
Ethylacetate 
n-Decane 
Isopropylbenzene 
IEthylpentane 
Di-n-Butylamine 
N-Dodecane 
o-Dichlorobenzene 
Allylacetate 
S,SDiethylpentane 
n-Butyl acetoacetate 
Benzylamine 
Indene 
Methylnaphthalene 
'L-Methyl-Spentanone 
Coumarin 
Phenylacetic acid 
Ethyl valerate 
5-Methyl-3-heptanone 
n-Octane 
Cumic alcohol 
Methanol 
2,4-Dimethyl-Shexanone 
Octylacetate 
Cycloheptadiene 
2-Methyl-1-octene 
. Ethyl Lmethylvalerate 
o-Nitrotoluene