Abstract
Forced air patient warming system such as Bair Hugger (BH) (Augustine Medical Inc., Eden Prairie, MN, USA) is a clinically effective patient warming device. Forced air is entrained through a microbial filter (0.2 μm pore size). The air is heated and blown through a detachable hose. The hose is attached to blankets with perforation on its underside. However a potential disadvantage is that BH may blow contaminated air over the surgical wound [1–4]. It does that by sucking pathogens from the floor and delivering them to the surgical field if the filter is not working or exhausted. The BH can also mobilize the patient skin organisms onto the surgical field. Pathogens from the BH tubing (which has been lying on the floor between cases) can also be delivered to the surgical field.
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