This is the perfect time of year in my opinion.
It is the fall and the time when in my section you do not need your central heating and cooling system, you do not need your whole beach apartment air purification plan if you have one, and you most certainly do not need any kind of fans.
This is the time of the year when you can open up your windows in the day time and take in the appealing air quality and cool breeze. Then at night the temperatures are so perfect you can pretty much just leave your windows closed and be warm enough to get through the night without a portable space furnace or central oil furnace. This is the best time of the year to save cash on your yearly energy bills as well. Because in the super warm Summer months of the year your central a/c plan is running all of the time taking up a lot of energy use. Then in the Wintertide you have your central heating plan running all of the time doing the same thing. But this time of the year there is nothing needed. It is so appealing this way in my humble opinion. And to myself and others it is my most preferred time of the entire year! But heed warning, it does not last for too long, and give or take a month or 2 and then it is on to the central heating being cranked for the next 3 months, followed by the central a/c plan being cranked the next 4 months after that.