protect design concept for a respirator technical drawing

I am looking for a skilled designer who can help me protect my design concept for a personal-use respirator technical drawing. The respirator should have reusable filters, a comfortable fit, and a compact design. The material required for the respirator is silicone. The ideal candidate should have experience in designing respirators and working with silicone and plastic as a material. The project will require attention to detail and a creative approach to the concept respirator design. example attached