MERV 13 4-inch Pleated Air Filter

MERV 13 4-inch deep pleated air filter — hospital-grade filtration with the long service life of a 4-inch box media frame. The 4-inch depth roughly quadruples the filtering surface area of a 1-inch filter, dropping pressure resistance enough that most residential blowers handle MERV 13 without issue. Captures bacteria, virus carriers, smoke, and fine particulates down to 0.3 microns.

• MERV Rating: 13
• Filter Depth: 4 inches (actual ~3.75")
• Captures: Bacteria, virus carriers, smoke, fine particulates (0.3 - 1 micron)
• Service life: 6 - 12 months typical (residential)
• Available sizes: 3 common box-media sizes
• Frame: Heavy-duty beverage board, double-wall
• Application: Medically sensitive homes, allergy management, whole-home air cleaners