The answer to 'how much does air filter cost in Chicago' is that the cost of air filters can vary significantly depending on factors like the size, quality, and type of filter needed for your HVAC system. In general, basic air filters for residential homes in the Chicago area can range from around $5 to $20 per filter. Higher-end filters with more advanced filtration capabilities may cost $30 or more.
The specific cost will depend on the make and model of your HVAC system, as well as where you purchase the filter. It's best to consult with a local HVAC technician or check with home improvement stores in your area to get a more accurate quote for your particular system and needs.