How Air Purifiers Became the Newest Wellness Craze

Air purifiers are being sold as health devices. But do they work?

AAdi struggled with eczema for years. At a young age, an allergist told the 30-year-old that he was allergic to house dust. He tried everything — “all the nonsteroidal prescription topical ointments, shots, changes in diet, various moisturizing creams” — to no avail…