The reason a lot of places have bad air quality is because of the fumes from cars.
If you live in an area that has a lot of traffic and highways, ten to one you have bad air quality.
This is not something that can really be helped. However, if you have the money and can afford it, a good way to combat this is to buy yourself a whole home air purification system for your home. By having a whole home air purification system it will clean all that bad air quality that got into your home from the fumes coming from the cars in your area. I actually bought myself a whole home air purification system. And once I did it was like night and day compared to what used to be. Before I had my whole home air purification system I was having major issues with the air quality in my home. My allergies were acting up all of the time and I did not know what I was going to do. But thankfully I was told about whole home air purification systems from my local heating and air conditioning specialist one day when they were here doing some work on my central heating and air conditioning system unit. This was a miracle in disguise let me tell you! This whole home air purification system makes it so that you do not even know the air quality is bad. The only drawback is the price of whole home air purification systems. I was lucky to be able to afford it to be totally honest with everyone.