Bedbugs have a very characteristic flat and oval shaped body with no wings. The average length can be between 4 and 7 mm. They are shiny reddish-brown in colour and sometimes may look dark brown. They spread from one building to another mainly through second hand furniture, furnishings, bedding, clothes or any item closely associated with human use. In commercial buildings such as hotels and resorts bed bugs enter through luggage, luggage carriers and used goods in addition to the above-mentioned items. Bed bugs also exude a subtle, sweet, musty odour. Houses with large numbers of bed bugs may have a characteristic unpleasant smell.