Air handlers and furnaces aren't often found in the same home in Shreveport. If you have a furnace, you likely don't need to spend time thinking about an air handler.
Air handlers are usually linked with heat pumps and manage airflow throughout your house. Some systems also provide backup heating and cooling components to support the heat pump.
A furnace works in a different way by pushing hot air into your vents, which send it around your residence. Because furnaces depend on combustion chambers to produce hot air, they don't need some of the components you'll spot in a regular air handler.