A REVIEW OF BEST AIR PURIFIER FOR ALLERGIES LARGE ROOMS

We’ve usually run our test units 24/seven for at least a 12 months—in one circumstance, for two a long time—and afterwards retested them using the outdated filters and in contrast them with brand-new ones. In every situation, there’s been almost no drop-off in efficiency for this purifier. (At times, we’ve even found a tiny enhancement: H