How often should I be changing my AC filter?

Quick video on the reasons why you should change your AC Filter monthly. Your system doesn't have to run as long, this saves the tenant money on their electric bill, but most importantly this saves wear and tear on your unit, which makes it last longer, which saves you money! Watch as Nathan from Total Environmental Cooling and Heating describes why you should change your filters monthly. For the properties I manage, I use a company that delivers filters to the tenants monthly, at the tenants expense.