Hector Guimard's conception of design excluded no element of daily living. No detail was unimportant to him. Hector Guimard did not produce his first standardized furniture designs for mass production until 1920. However, with the rise of the Art déco style and the concomitant changes in formal intention, which Hector Guimard refused to follow, his designs went out of fashion.
In 1938 Hector Guimard emigrated to New York, where he died in 1942.