I’d like to also see a comparison with:
A) shroud
B) upward air flow
C) mounting the filters horizontally under the fan (pulling air in from the sides to blow down through the filter).
D) comparison with the classic MERV furnace filter taped to large box fan
I’d be tempted to test these variations myself, but my only ceiling fan is on a high ceiling I can’t reach.
I’d like to also see a comparison with:
A) shroud
B) upward air flow
C) mounting the filters horizontally under the fan (pulling air in from the sides to blow down through the filter).
D) comparison with the classic MERV furnace filter taped to large box fan
I’d be tempted to test these variations myself, but my only ceiling fan is on a high ceiling I can’t reach.