In my opinion. Air quality is better than the fan. Because heat and cool faster than the fan. This can be seen from the fact that we only open air cooling than a single fan.
In my opinion, there are better quality air fan because of the cold and help over at the fan. As can be seen from our open air only, cooling, rather than a single fan open.
In the opinion of my brother is good quality than speed Fan because cold and hot release more than fan can be seen from the fact that we turn on the air conditioner, only one cooler than on the fan.