In this demo we compare the “Bonnet” method of Dry cleaning to commercial truck mounted steam cleaning. This “dry cleaning” system is still widely used today however scaled back since encapsulation came on the scene. But still not comparable to steam cleaning and the video demo shows a typical Bonnet procedure used today.
My opinion is bonnet cleaning is the equivalent to rubbing yourself down with wet towels compared to taking a shower. Just imagine bringing a buffer to clean a crime scene. Or attempting to clean feces, urine or vomit with a spinning cotton pad.
The world’s largest manufacture of carpets Shaw Industries will void your carpet warranty if any other system than “Hot water extraction” AKA “Steam cleaning” is used.
The CDC recommends only steam cleaning carpets in cases of infectious health conditions.
The moral of the story is if you can’t wait a few hours for your carpets to dry and you choose a “Dry” system you will be sacrificing an actual effective, deep and sanitary cleaning for convenience. Also heavy rotating pads of any kind are another way of voiding carpet warranties since the weight and rubbing can untwist and damage cut pile carpet fiber.
All facts can be found on http://www.dirtblasters.com