Snip> Just noticed I haven't backed up my desktop for a month, so doing that now. Timely reminder. Thankyou. Snip> Booked appointment to get cleaners in. Getting too old for it. I did do a kitchen window ledge and the glass today. It's £66 an hour for two people who will be actually here, cleaning ...
Looks a bit like snake oil to me. Bleach is sodium hypochlorite (it's usually diluted) with the formula NaOCl. It can be produced from salt water by a process called electrochlorination but I don't think a 5v USB supply (even at 2 Amps) is going to produce much at all. see https://www.eicstech.com/...