Every professional carpet cleaner needs to remember that cleaning carpets and sofas requires more attention in autumn/winter/early spring seasons.
During summer season air is much drier, temperatures are much above zero, so it is obvious that carpets, rug and sofas dry faster than in autumn and winter seasons, when it is much more humid and temperature outside goes much below zero. Therefore, even when carpets are not dried with much attention they will dry without problem in summer time.
Every carpet cleaning operator needs to pay attention even if the property is well heated during winter. That is because most British houses are without insulated cellar, so cold air still penetrates wooden flooring and carpets which lay on them.
During winter every operator needs to pay extra attention to make sure the carpets are not only cleaned properly but also properly dried. Therefore; it is worth to remember about giving that extra stroke of extraction or put those extra driers on.
Carpet cleaners usually use snail dryers which are most powerful, the other most common type is rotary which are usually less powerful and work on smaller area.
Whichever dryer is used it improves air circulation and therefore speeds up drying to both carpets and sofas.
It is worth, however; to notice that in order to fully dry the carpet it would probably take approx 1h while in order to dry a sofa it would still take few hours. Therefore, dryers are important drying boost but they are not intend to fully dry. As they do not produce heat they are called air movers or air blowers rather than dryers.
Why carpets should dry quickly?
If carpets dry for many hours or sometimes days because of being over wet, they become best environment for bacteria to breed. That bacteria causes mould to grow as well as the carpet to smell bad. Sometimes it referred as smell of damp or smell of a 'wet dog'. Whichever it is, it definitely needs rectifying. Usually, it means, drying the carpets, cleaning and deodorizing and drying them again.
While such situation is an obvious error of the operator and should be resolved free of charge, it is sometimes not really the cleaner to be blamed. If the property has poor ventilation, is poorly heated or not heated at all (i.e. empty property), it may develop such problems despite all precautions being saved.