Merv 13 Pleated Air Filter - 17 1/4" x 17 1/4" x 1" Quantity:12-pack The unit is available with

The unit is available with a 14‰۝ or 16‰۝ 100% Germicidal UVC lamp

Simply cut a hole

In general

some just refer to them as electrostatic filters

Instead of face loading (particles captured on the outer surface of the filter)

Merv 13 Pleated Air Filter - 17 1/4" x 17 1/4" x 1" Quantity:12-pack The unit is available withAny Kind of Filter's Extended Surface Pleated Filters outperform ordinary furnace filters with medium efficiency and are designed for lower pressure drop, and long service life which reduces HVAC equipment maintenance and energy costs. A higher MERV rating means that the air filter that you are about to purchase possesses a higher amount impurity filtration ability than your ordinary filter.