When the dust and dirt, as well as all of the allergens, get embedded in the carpets, they will stay there until something disturbs them. This is accomplished by people walking around on it. Also when kids play there, the piles are disturbed, When either of these happens, the contaminants can be dislodged and become airborne. These can then float into other areas of the house.
The normal vacuuming you do on a fairly regular basis must be done to keep the dust and dirt off. The problem with trying to use this system to clean the carpets is due to the relative size of the contamination being discussed. Vacuum cleaners regardless of brand are designed to pick up particles that are at least ten microns in size. The particles that are the most dangerous to the health of your home are smaller than this at five to seven microns.
When you call the professionals to come in and clean your carpets and are rugs, they will perform a complete inspection of all floors. This will be done to determine what types of material is used for the construction of the flooring as well as the types of contaminants present. They will also completely vacuum all of the regular dust and dirt from the tops of the pile.
Your crew will use one of two main systems to clean your carpets and rugs. One of these is used primarily for woolen blends or virgin wool carpets. This is a dry chemical method or those rugs that can not accept the use of a lot of water. The other system uses a lot of water.
The dry chemical system uses an ultra low moisture bead that is broadcast over the floor and worked into it by the use of special brooms or rakes. This material bonds with the contaminants and allows them to become larger for a vacuum to pick them up. This chemical also provides disinfectant that kills any live organisms and presents a fresh smell that permeates the room.
The cleaning system that is used universally on most carpets is the water extraction system. It forces a water cleaning solution deep into the fibers to dislodge and suspend the contamination. It creates a dirty solution that can be picked up by a wet vacuum. The disinfectant that is in the cleanser also sanitizes the flooring and helps make a pleasant fragrance as well.