• BioSmart Technologies, LLC BBB Business Review
  • Our BioSmart® Heater saved us hundreds, maybe even thousands this year! The fuel man would take double looks at his meter every time he would fill us up!
    Randal Swob
  • CZ1500filter
  • CZ1000filter
  • UnitSizes

Electrostatic Filter for ComfortZone Heaters


Choose the filter that corresponds to the size of your heater (check the pictures if you’re unsure).