Jf. Coakley et al., A SAFER ALTERNATIVE TO THE SPIRIT LAMP AS A MIRROR WARMER IN OTOLARYNGOLOGY, Journal of the Royal College of Surgeons of Edinburgh, 41(5), 1996, pp. 329-330
The spirit lamp has been used as a mirror warmer in ear, nose and thro
at departments since the beginning of the speciality. A naked flame is
a fire hazard and causes burns. A semi-conductive ceramic heater used
for manipulating spectacle frames is a safer alternative.