In recent days, you might have spent a lot more time indoors than you used to. The air in our homes is generally worse than outside air, but you do have some control over how big that difference actually is.
But, why should you even be concerned about that? Well, there are many ill effects from breathing poor quality air. You might end up suffering from headaches, trouble concentrating, or other issues. It could even lead to long-term health problems in a worst-case scenario.
Since the outside air generally will be better quality, airing your home out every now and then is going to be very beneficial. If you can open the windows for just 10-15 minutes, you will quickly notice a difference.
Having plants in your home can also contribute to good air-quality since they naturally clean the air. You should avoid using any type of fertilizer though since this could make the air worse instead.