@GainOfDystopia @Michael34301004 @FinchTH @CRBoxKits @sri_srikrishna 3M also has slightly better MPR 2200 which still rate as MERV 13. Probably not a significant difference, but sometimes one or the other may be out of stock or discounted. Likewise MPR 2400/2800 both MERV 14.
@GainOfDystopia @Michael34301004 @FinchTH @CRBoxKits @sri_srikrishna 3M 的 MPR 2200 也稍好一些，仍被评为 MERV 13。可能没有显着差异，但有时其中一个或另一个可能缺货或打折。同样 MPR 2400/2800 和 MERV 14。