DIY Frequently Asked Questions / Fiberglass Filter')">
Designed to protect the heating and air conditioning system from large particles, heavy dust and lint.
Protects furnace from larger particles and lint that enter the HVAC system.
Most common type of filter.
Fibers are not dense or electrostatically charged, so they cannot attract and capture smaller-sized particles.
This type of filter should be changed at least once a month.
Most common size for all furnace/AC filters are 20”x 20”, 20”x 25”, 16”x 20”, 16”x 25” and 14”x 25″.
DIY Frequently Asked Questions / Fiberglass Filter')">
Designed to protect the heating and air conditioning system from large particles, heavy dust and lint.