Product Overview
2' ft x 4' ft ULPA HEPA Filter
24"x48" Ultra Low Particulate Air 0.12 µm (micron) 99.999% minimum effectiveness.
Mini-Pleated HEPA Filter on Aluminum Frame.
Nominal size: 23.375 x 47.375 x 4.687
Minimum particle penetration size of 120 nanometres (0.12 µm, ultrafine particles).
Category: Merv 20+/ H14+
Is ULPA filter better than HEPA?
ULPA filters trap more and smaller particulate matter than HEPA filters. ULPA filters are 99.999% effective at removing submicron particulate matter of 0.12-micron diameter or larger, while HEPA filters are 99.97% effective for eliminating particulate matter of 0.3-micron diameter or larger.
