Reusable face masks
They are made from two layers of pure cotton and an inner layer of a synthetic fabric filter which US upholsterers use to make hospital masks, and which is used routinely in upholstery. There is a wire nose piece, and the mask can be washed in hot soapy water, dried and ironed with a hot iron. The elastic can be snipped to fit, and, while I have made them to fit around the head (they can become uncomfortable around the ears for glasses and hearing aid wearers), the elastic can be cut and tied to fit around the ears instead. I've made several prototypes and this design seems to suit lots of people, including children.
These can be picked up from my studio during normal opening hours or delivered worldwide.