Summarize the following:
Houseplants are one of the easiest ways to improve indoor air quality. In addition to converting carbon dioxide into oxygen, studies have also shown that houseplants can reduce the indoor concentration of ozone, which is another harmful pollutant. Three common houseplants that studies have proven beneficial include snake plants, spider plants, and golden pothos. A filter purifier for the air in your home can help remove dust, smoke, and other pollutants. Air filters, electronic particle cleaners, and ionizers are all common forms of indoor air purification systems. Beware of brands that claim they create ozone in order to purify indoor air. Ozone a leading pollutant, especially during calm summer months, and these models can create harmful amounts of ozone while cleaning other particles from indoor air. Especially for those who live in big cities, it's common to run or bike along busy, congested streets while exercising. The abundance of vehicle exhaust and other pollutants in these areas can damage your lungs, especially given that you tend to breathe through your mouth during vigorous exercise, which bypasses the natural filtration you get through your nostrils. You can also check the EPA's nationwide air pollution forecast for your area here to determine the air quality in your area.

Summary:
Buy houseplants. Use an air purifier. Avoid high traffic areas.