Vacuum assembly took place in the unused half of the plastic factory. Due to quality control concerns and Phillips's desire to renegotiate the terms of their contract to build the vacuum cleaner, Dyson severed the agreement in May 1993. Within two months he set up a new supply chain and opened a new production facility in Chippenham, Wiltshire, England; the first vacuum built at the new facility was completed 1 July 1993. The DA 001 was soon replaced by an almost identical cleaner, the DC01. Dyson licensed the technology in North America from 1986 to 2001 to Fantom Technologies, after which Dyson entered the market directly. Even though market research showed that people would not be happy with a transparent container for the dust, Dyson and his team decided to make a transparent container anyway and this turned out to be a popular and enduring feature which has been heavily copied. The DC01 became the biggest selling vacuum cleaner in the UK in just 18 months. By 2001, the DC01 made up 47% of the upright vacuum cleaner market. The company introduced a cylinder machine, the DC02, and produced a number of special editions and revised models (DC02 Absolute, DC02 De Stijl, DC05, DC04, DC06, DC04 Zorbster). On 2 January 2001 the company name was shortened from Dyson Appliances Ltd. to Dyson Ltd. In April of that year the DC07, a new upright vacuum cleaner using "Root Cyclone" technology with seven cyclone funnels instead of the original dual-cyclone design, was launched. By 2009 Dyson began creating other technologies: the Airblade hand dryer, the Air Multiplier "bladeless" fan and Dyson Hot, the "bladeless" fan heater. In October 2019, Dyson released the Pure Cryptomic, available in a fan version and a heater + fan version. The device is able to remove formaldehyde from the air; this flammable and colourless gas can irritate the skin, eyes, nose, and throat. Production locations Dyson vacuum cleaners and washing machines were made in Malmesbury, Wiltshire until 2002, when the company transferred vacuum cleaner production to Malaysia. There was some controversy over the reason for this move, as well as over plans to expand Dyson's factory to increase production. Trade unionists in Wiltshire claimed that the move would negatively impact the local economy through the loss of jobs. The following year, washing machine production was also transferred to Malaysia. This move was driven by lower production costs