There is no clear evidence to date showing that exposure to properly maintained WiFi equipment would increase the risk of cancer. However we cannot say for certain that there is no risk, nor can we predict what future research may find. The International Agency for Research on Cancer (IARC) recently undertook a comprehensive assessment of cancer risk caused by electromagnetic fields. IARC looked at electromagnetic fields arising from use of personal devices (eg, mobile telephones, cordless phones, Bluetooth and amateur radios), along with occupational and environmental sources. IARC found a ‘possible link’ (not proven) between mobile phones and cancer, however there was insufficient evidence to warrant any of the other sources reviewed being categorised as ‘possibly carcinogenic to humans’. Independent of the IARC assessment, a review of available studies concerning base stations and wireless technology in 2007 concluded that there was no consistent evidence of cancer causation.