Made In USA Respirators. All respirators on this page are Made in the USA. Moldex respiratory protection products don't just look different, they are different. They're user friendly. They're easy to put on and fit. The contoured shape of our respirators doesn't require constant adjustment and they resist collapsing in heat and humidity. Avoid premature disposal and save money with Moldex respirators. Moldex also has the only complete line of PVC-Free respiratory products.