As California wildfires raged through Sonoma and Napa counties in late 2017, Tim Worboys couldn’t set foot outside. The thick smoke posed a severe threat to his asthma, but even the indoor air quality was starting to worry him. That is until Worboys turned on his new air purifier, a magical device that instantly had him breathing more easily. Only it wasn’t magic at all. It was Molekule — a purifier that uses a new type of filter to scrub the air.