Best in Class The Strategist’s carefully chosen and rigorously vetted flagship shopping guides. Learn about our methodology here , and find all our Best in Class guides here . Photo-Illustration: The Strategist; Photos: Michael Zhao In this article Best overall Best less expensive Best for bedrooms Best for large spaces Best premium Best low maintenance For as long as I can remember, allergies have kept me from fully enjoying time spent outside during the spring and early summer. But ever since