@gigiv this is the first I am learning of red light therapy and lung health. I know many use for chronic pain and I have been curious about it in this regard but the science of it, and all the marketing around it, have put me off just in terms of working through it and understanding what I need and buying the right equipment. I am curious in others experience with red light therapy, for any use really, but particularly as regards their lung function. Any recommendations on red lights themselves would also be very helpful. Thanks.