When there are smooth winds in my area it actually helps the air quality. The air quality here can vary from month to month or week to week. Having good air quality is best when there are smooth winds. When this happens I do not have to use my whole home air purification system at all. Using my whole home air purification system can cause pretty high energy bills if I use it twenty four hours per day as well as seven days per week. So this is why i really am happy when there are smooth winds. There is no need for the whole home air purification system at that point. I sometimes run a portable air purification system in its place if it can work good with the bad air quality days. Which sometimes it does and sometimes it does not. But as long as I do have my whole home air purification system I can pretty much combat anything when it comes to even the absolute and most positively worst air quality around! But I will say it again, when there are smooth winds in the local area in which I live, that is when we have the utmost best air quality that I can deal with and I do not need to flip on that whole home air purification system which costs so much cash to run when it comes to the monthly electric bills that i receive monthly in my household. Right now we are dealing with the bad air quality, but next week we should have more of those smooth winds.