The Blo-Bag, a disposable spacer.

" Blo -Bag", a new disposable spacer device, has been tested in conjunction with Duovent metered dose inhaler. Duovent produced a significant bronchodilatation for the duration of the study. When delivered by the " Blo -Bag" it produced a significantly greater increase in peak expiratory flow rate than when delivered by metered dose inhaler. There were no significant side effects.