I was uncertain about purchasing after I had seen a few reviewers commenting that it caused color fastness. That had me worried that the ph would be off. I am fairly chemistry fluent, and know a good deal about chlorine production etc, so I kind of knew what I was looking for in terms of quality. Upon receiving the package I was pleased to see how well it was packed. I was also glad that I ordered in the winter months, as heat negatively impacts the concentration of HOCl in solution, and there is never any telling how fedex & partners will handle your packages en route. When I opened the bottle, I immediately smelled the active chlorine smell. It was not that public pool smell, think more like the old clorox brand “anywhere spray” smell. Very light, although you do notice a change in the strength of that over time. I used test strips and titration to Check the ph and the free chlorine level of the concentrated batch, and it checked out as advertised. I use this stuff on everything, and in everything. The main purpose is for my skin believe it or not. I happen to have mast cell activation syndrome, so undetermined environmental contaminants cause my exposed skin to get very red, very hot, and very uncomfortable. Using a dilute solution of hocl & distilled water on these reactions is nearly immediately soothing. If you look into it, this is the same chemical compound that our white blood cells create to help wounds heal, and it’s been proven to have anti-inflammatory effects as a kind of bonus. As if that weren’t enough to sell you, because it is not so reactive to many common bacteria, it doesn’t begin to deteriorate immediately. For this reason, there is a bit of a prophylactic effect that has been shown in studies as well. The way that the compound enters cell membranes makes it effective at denaturing proteins too. From what I have gleaned this would mean that it would in essence denature allergic proteins in particulate such as dust mite debris, and pet dander for instance. I have had a lot of success using this product on my skin, to clean wounds on my kids, dog and cat ears, and around the home to sanitize plus deodorize too. Using it in a ulv fogger, cool mist/ultrasonic humidifier, and even a continuous mist sprayer supposedly enhances the chemical’s antimicrobial properties. It also remains airborne longer, allowing more contact time with airborne contaminants. I don’t know if you have ever read about how long dust mites can remain suspended in indoor air with just natural air flow through the typical home…it’s disgusting. I promise that you will notice a pretty immediate difference in the air quality indoors. It isn’t been proved to sanitize or disinfect porous materials, however judging from its permeability, and mode of action on other surfaces, I feel confident using it on our plush surfaces, and rugs. It is fantastic for cleaning car interiors too. There is really nothing that it doesn’t do, and do well. Before I learned about hypochlorous acid, I would use hydrogen peroxide or peracids for many of these purposes sans topical/oral application, and was never really satisfied with the consistency of the effects beyond using it in laundry. I also wound up with chemical burns no matter how cautious I would be with pouring and mixing concentrated types. I am looking into generating my own, as this would be most cost effective for us, as we also have a pool & I would love to put it to use sanitizing my laundry without having to worry about it being too dilute. I wouldn’t want to carry on with that until I had all of the best components and mastery over the specifics. Until then I plan to stick with Brio surface/air, and easily recommend anyone interested do the same.