Think that's more to do with silver you can find a brief but concise explanation about colloidal cleaning here https://eco2000.com.au/colloidal-cleaners/
I'm not "pushing"anything just offering an explanation of colloidal cleaning. The silver reference was in answer to his question about the banning.
They do work on light soiling anything heavy they struggle. But still too much hanging about for me.
No before and after picture is as it seems .Was the before pic taken after pre sprayed Did you open the curtains for the after shot Did you use photo editor What construction is the carpet What is the soiling What do you use to agitate What Heat are you using What psi is it rinsed at Was it bonneted Was there sun damage etc etc They do look good though
No before and after picture is as it seems .Was the before pic taken after pre sprayed NoDid you open the curtains for the after shot No curtains in a commercial premises corridorDid you use photo editor NoWhat construction is the carpet Commercial carpet tileWhat is the soiling Heavy protein from waste disposal plant walked across carpets (almost like bar black)What do you use to agitate NothingWhat Heat are you using 50 degree water mixed with Colloidal CleanerWhat psi is it rinsed at No RinsingWas it bonneted Microfibre paddedWas there sun damage etc etc Internal Corridor with lamps on 24-/7They do look good though They sure do!
Lol, don't know him. All becomes clear, just like the carpet