About IDFL Laboratory and Institute IDFL is the global leader in filled textile testing. Founded in 1978 in Salt Lake City, IDFL is the largest down and feather laboratory in the world. IDFL has since expanded to include, natural fill testing and inspection and audit services. IDFL has laboratories in, and China to service all corners of the globe. Mission of IDFL IDFL is committed to be the premier global laboratory and testing institute for filled textile products. Our services will be cost effective and our client support will be the best in the industry. Our reputation will be accuracy and integrity. IDFL will provide fair, honest and trustworthy testing to help the industry instill confidence in consumers that they are receiving quality products. IDFL has the best, highly skilled, well trained analysts that take pride in providing accurate and fast results. Please see other reasons to test with IDFL