Animal-transfer and cage-changing stations are portable downdraft-filtered clean benches that have been specifically modified for small-rodent handling and cage changing from two or more sides, and that are advertised by their manufacturers as providing improved laboratory animal allergen control. The authors evaluated the dust containment capability of three such devices under exaggerated challenge conditions, compared design features, and conclude that animal-transfer stations can be a useful addition to an institutional laboratory animal allergy control program.