What are the differences between a furnace filter and an air filter, and how do they impact indoor air quality and HVAC system efficiency?

A furnace filter is specifically designed to trap larger particles like dust and debris from the air that passes through the furnace. An air filter, on the other hand, is more general and can capture a wider range of particles, including allergens and pollutants.

Using a high-quality air filter can improve indoor air quality by trapping more harmful particles, while a furnace filter primarily helps protect the furnace from damage. Both filters play a role in maintaining HVAC system efficiency by preventing buildup of debris that can clog the system and reduce airflow. Regularly changing or cleaning these filters is important for optimal performance and air quality.