Maintaining optimal air quality in your home requires regular replacement of your air filters. Your HVAC system will also perform more efficiently with a clean air filter.
The glass air filter is more affordable but less effective at capturing dust and particles in the air. These filters should be replaced on every 30 days or so.
Filters with pleated surfaces are more expensive initially, however, they are more efficient at trapping particles and last for up to 90 days, depending on usage.