Standing just over a foot tall, the Airmega 50 was just launched in June and is an addition to the growing tabletop air purifier space—a mini-me to the brand's Airmega 100. The Airmega 50 has many of the features of Coway’s larger and more expensive models, and at just under $80, it’s one of the cheapest Coway air purifiers to date. I understand the desire to have an easy-to-carry tabletop-sized air purifier, but can they really clean the air effectively? An air purifier's sleep mode is when the purifier becomes a less effective version of itself, and the Airmega 50 is no exception. Size MattersPhotograph: Lisa Wood ShapiroThe Airmega 50 has many of the features that make Coway air purifiers a long-term WIRED favorite.