Dry carpet cleaning is a process that uses very-low-moisture and physical contact to remove soil from carpet, rug, and upholstery fibers. The most common method of dry carpet cleaning is the spin-bonnet method, which uses a buffer type machine that spins around on top of your carpet.
Angel Dry does not uses this method. We use a unique Austrian method which uses counter-rotating-brush actions on our Austrian-made machines to physically remove soil particles, sort of like a toothbrush.. With hot water extraction, clean water is carried from your kitchen sink to a van in your driveway, where the water is heated up, before it is carried to a pressure washing and vacuum system. Your carpet, rugs, and upholstery is cleaned with water jets and chemicals, as the metal steam cleaning wand passes back and forth on each section of the carpet, rug, or upholstered furniture.
Each pass of the wand takes around 2-3 seconds. On the first pass, the water jets forcibly remove most of the dirt from your carpet fibers in a downward direction. As the dirt is released from the carpet fibers, it mixes with the water. Downward pressure and gravity carry much of this dirty water deep down into your floor or into your furniture’s cushioning. The dirty water mixture is absorbed into your carpet pad and in most cases down into your wooden or concrete sub-floor.
At this point, the dirty water mixture is out of reach. At this point, after the first 2-3 second pass, which we refer to as the pressure-washing pass, the second pass of the steam cleaning wand goes back over the section to vacuum out any liquefied dirt that can be sucked up into the vacuum system. This process happens so quickly, typically both passes of the steam cleaning wand in under five seconds. But it does not matter because the water jets are so powerful, combined with gravity, the dirt and water mixture is almost immediately carried deep down into the carpet backing and underlayment pad, where it is out of reach by even the most powerful vacuum system.
All of that dirty water just sits there, out of sight, which looks good to the customer, at least temporarily. Then, after the process is complete, the evaporation process begins, in most cases requiring several days, up to a week to completely dry out all of the moisture that rests under the carpet and in the sub-floor. The same is true for upholstered furniture. The fabric may dry out in less than a day, but the foam, feathers, fiber fill, wood and metal components can be exposed to moisture for several days. This not only causes damage to your investments, but the moisture is now mixed with all kinds of dirt, including oils, dead skin cells, microbial waste, even living microorganisms.
This is like the ultimate breeding ground for many types of bacteria, fungi, mold, mildew, viruses, dust mites, creating a cesspool of a microbial ecosystem in the vary items that you wanted to be clean. Steam cleaning (hot water extraction) your carpet, rugs and upholstery makes about as much sense as washing 1,000 lbs. of clothes in a giant washing machine for 3-5 seconds. No rinse cycle. No spin cycle. Then, spread the soaking wet clothes all over your home and attempt to vacuum up the dirty water and detergent, much of which would have immediately drained down or would be trapped in the absorbent clothing fibers.
Steam cleaning is actually a pressure washing system, by which jets of water and detergents forcibly remove soil particles from fibers. First, dirty water is forced deep down, and just a second later, the vacuum wand attempts to remove as much of this dirty water as possible. The dirty water that has been forced down by pressure and gravity is absorbed into materials, where it is out of reach from the powerful vacuum. It is equivalent to trying to remove dirt from a wet rag with a wet/dry vac. You could try for hours, but the rag will still be wet, with the dirt still trapped in the fibers.
Pretty tough to vacuum up dirty water that has clothes all over your home to air dry. Liquefied dirt and detergent will drain down to Wet carpet, rugs and upholstery makes about as much sense as not all types of microbes emit an identifiable odor, but common sense is screaming at us – don’t leave wet things in our house. It just doesn’t make any sense, yet millions of people do it every day. They know that wet clothes should be put in the drier right away. Floor spills should be mopped up right away. Rooms with excessive humidity or sub-floor moisture should be force dried with fans and dehumidifiers. When fibers, fabrics, and absorbent materials take on moisture, this creates a breeding ground for bacteria, viruses, mold, mildew, and dust mites. These microbes and pathogens reproduce quickly, creating large quantities of biological waste, contaminants and allergens that can quickly spread, creating unsanitary surfaces and poor indoor air quality.
One reason that consumers put off having their carpet, area rugs, and upholstery cleaned is the inconvenience of waiting for wet materials to completely dry out.
Consumers are intuitively aware that excess moisture is not conducive to a healthy and sanitary environment. Wet clothes should be put in the drier immediately. Floor spills should be mopped up right away. Rooms with excessive humidity or sub-floor moisture should be force dried and dehumidified. When fibers, fabrics, and permeable materials absorb moisture, this creates a breeding ground for bacteria, viruses, mold, mildew, and dust mites.
These microbes and pathogens reproduce quickly, creating large quantities of biological waste and contaminants that can quickly spread throughout an interior environment, creating unsanitary soft surfaces, as well as poor indoor air quality conditions, including airborne allergens. Anyone who has ever done a load of laundry and left clothes in the machine for a few hours can relate to this – otherwise “clean” clothing would have a pungent mildew odor.
Unfortunately many microorganisms and their biological contaminants are undetectable. It is for this reason that consumers should always weigh the risk of introducing excessive amounts of moisture in a home or office environment without force-drying afterward. pressure washing and wet vacuuming your soft surfaces, as steam cleaners do. Steam cleaning companies may claim to offer a “dry” or “fast-drying” service, but unfortunately this is rarely the case. Steam cleaning, in fact, does not use steam at all. Technically, steam cleaners use a process called hot-water-extraction (HWE), which transfers hot water through hoses to a metal wand which literally pressure washes your carpet with high-powered water jets which, aided by chemicals and detergents, remove soil from carpet fibers, rug yarns, or upholstery fabric.
When a steam cleaning technician operates his wand, he makes two very important passes on top of the soiled carpet. On the first pass, hot water is forced downward with intense pressure, removing “stuck on” soil from the carpet fibers. On this first pass, some of the now liquefied soil is simultaneously vacuumed up by the wand, but as a result of the intense pressure from the water jets, gravity carries much of this dirty water deep down into the carpet backing, into the under-layment pad, and ultimately down to the concrete or the wooden sub-floor. On the second pass of the wand, only the vacuum on the wand is operated, removing any liquid that has not absorbed into the yarns or fiber. Picture using a wet / dry vacuum to remove water from wet clothes – it’s virtually impossible because the moisture has been absorbed. Any dirty water that is trapped in the carpet, rug, or upholstery will remain.
Fortunately, for aesthetic purposes, much of the soil has been forced deep into the carpet where it is no longer an eye-sore. On the other hand, as all of the deep down moisture evaporates over a period of several days, tiny droplets of water will “wick back” up each fiber, carrying tiny soil particles and chemical residue with them all the way back to the surface of the carpet. The water will eventually evaporate, breaking apart into oxygen and hydrogen gas, leaving behind dried soil. In the carpet cleaning industry, we refer to this phenomenon as “wick back”, when stains reappear days or weeks after a carpet cleaning service.
If you happen to have a wooden sub-floor (usually plywood or OSB) under your carpet, such as most 2nd floors in residential homes, you should be careful to prevent excess moisture from permeating beneath your carpet.
As microorganisms thrive in a protected habitat such as wet carpet, they generate biological contaminants that quickly spread, sometimes noticeable by a pungent odor such as with mildew, while other times, they are virtually undetectable. Sometimes, such as in the case of fungi like “mildew” they release gas, a pungent odor, and other times they are virtually undetectable. That being said, for a healthy and sanitary living environment it is critically important to quickly and completely dry out your cleaned carpet, rugs and upholstery with professional air movers, dehumidifiers, and preferably heat sources. While this is not typically offered by steam cleaning companies, as consumers have become more aware of the dangers of moisture in an interior environment, many carpet cleaning companies have started offering forced drying services as an add-on preventative service for preventative and sanitary purposes. as dry as possible living environments, reducing indoor air quality.
Stains, spots, and residue often “wick back” during the evaporation process and the sticky residue left behind is like a magnet for new soil, also making it difficult to vacuum, as soil particles become stuck to the carpet fibers. The same is true for upholstery and area rug cleaning. Imagine doing a 1,000 lb. load of laundry without a rinse or spin cycle and spreading all of the clean wet clothing across your floor to air dry without a disinfecting heat source.
Your entire home would begin to smell like mildew within a few hours, just one symptom of a microbiological population explosion. Many types of microbes, airborne pathogens, and dust mites thrive in densely protected, yet breathable environments, particularly when excess moisture is introduced. It should be noted that the majority of microbial pathogens are moisture-loving, rapidly spreading in wet environments, even after a thorough cleaning. Skeptical? Try doing a load of laundry and leave your wet post-spin-cycle clothes in the washing machine for a few hours. You will smell the effects of how pervasive microscopic pathogens can be. And it’s not just mildew. Of course, with steam cleaning, there is no rinse cycle or spin cycle, just a couple of passes of the magic wand, first forcing liquefied soil downward, then vacuuming up some of the liquefied soil, leaving behind a temporary illusion of clean carpet. Micro-life always finds a way to thrive in wet environments.