Steam injection and extraction increased hugely in the early eighties in New Zealand. It became and has remained the staple of carpets maintenance in New Zealand and across Australia. Steam extraction cleaning has been proven to be unsurpassed in its ability to remove the majority of foreign soils hosted in carpets and fabrics. Stain removal is much more efficient with this method as the extraction process facilitates the use of a wider range of chemical formulations.
New Zealand carpets are unique in the sense we have a much larger proportion of wool carpets in residential and executive offices. Although many new synthetic carpets with attractive easy maintenance qualities have entered the market, many kiwis prefer the higher quality resilient natural woolen flooring at home.
Woolen carpets often have a dense pile which can host a lot of soils. The Steam extraction method is very well suited to emulsifying and flushing the soils out very effectively.
This is a key reason Hot water extraction is still the dominant method here in New Zealand.