Another favorite website of mine: I love websites that are straight-forward, they do what they say they will do, without me having to "think" too much! Kudos to National Allergy for being one of those "good, simiple, and straightforward" websites!
They were responsive to phone calls and inquiries and delivered the product quickly and at a great price. We bought an Austin Air purifier from them August 2021.
Recommended seller A+++++