MBA to 2 HP monitors
According to EveryMac


  *Although Apple only reports that this model can support a single external display up to 2560x1600, Intel reports that this model can
  simultaneously support two external displays up to 2560x1600 "daisy
  chained" via Thunderbolt.


So, no - only one monitor over HDMI. Two If you can daisy-chain compatible Thunderbolt monitors.