  We investigate the role of chirality on the performance of a Maxwell demon
implemented in a quantum Hall bar with a localized impurity. Within a
stochastic thermodynamics description we investigate the ability of such a
demon to drive a current against a bias. We show that the ability of the demon
to perform is directly related to its ability to extract information from the
system. The key features of the proposed Maxwell demon are the topological
properties of the quantum Hall system. The asymmetry of the electronic
interactions felt at the localized state when the magnetic field is reversed
joined to the fact that we consider energy dependent (and asymmetric) tunneling
barriers that connect such state with the Hall edge modes allow the demon to
properly work.
