Mike compares a traditional circulating fan form Walmart with the Dyson fan that costs 43 times as much. The Dyson fan includes an a hepa and charcoal air purifier as well as a remove control and cellphone control if you prefer. But the Walmart fan generates greater wind speed with less noise. So if you don't need the remote and can manage to find an air filter that costs less than $635, your might like to stay with Walmart.
—David Foss