OpinionHealth on the Shelf: How Markets Made Life-Saving Inhalers AccessibleSaveMark Us Preferred on GooglePrintPixel-Shot/ShutterstockByron Carson8/21/2025|Updated: 8/21/20250:00X 1CommentaryA simple conversation sparked the idea for modern metered-dose inhalers, but markets made them iconic.We had a problem loading this article. Please enable javascript or use a different browser. If the issue persists, please visit our help center.