The heating and cooling for our homes will be 50% of our energy cost, but industry are fighting tooth and nail to keep out the mini-split. To mini-split a garage we charge $4500.
Trane's perfect fit 5" media filter is almost $100 a piece. Bear, Filtrete, Honeywell 5" but really 4" media filter about $27. These filters say for one year, buy two for the year and save half. Gives you MERV 12.
Mitsu SEER is at full blast. The comparison is fixed with non-inverter units. No way to compare the efficiency. The true efficiency might be 35 SEER or more for the Mitsu.