Coway Airmega 400 Smart Air Purifier (Graphite) $349 or Less + Free Shipping

Coway Airmega 400 Smart Air Purifier (Graphite) $349 or Less + Free Shipping. 5% coupon may be YMMV. So far 2 saying they don't see the coupon. Coway Airmega 400(G) Smart Air Purifier True HEPA Air Purifier with Smart Technology, Covers 1,560 sq. ft., Graphite. I bought the white unit recently at Walmart for $350, got 1.5% CB from my credit card and will get another 10% credit card shopping rewards. This is lower than recent sales of $342. It's great if you have the Amazon Chase card for another 5-6% rewards.