Allergy season is coming up, prompting many homeowners to remember to change their air filters so they’re not left in the dust (sneezing and coughing because of it). Most technicians and AC/heating manufacturers recommend replacing an air filter in a home once every month or, at most, every 3 months. However, if you don’t suffer from allergies, this may not seem like a priority.
Instead of running out to the store to get a new filter every 3 months, we have heard of people opting to pull out the old filter and wait to replace it. But we’re here to warn you that you should never run a furnace without a filter.