site link Bill. Available to Southeast Florida residents only.Regular AC maintenance is The true secret to ensuring your system runs efficiently and reliably, especially when you'll need it quite possibly the most. At Gilmore, our thorough AC maintenance services are intended to keep your unit in peak problem.Air filters, furnace filters and AC filters are very similar products and the terms are utilized interchangeably. Besides dimensions differences, the air filter that goes in the central HVAC unit or Website your return vents is named an “AC filter” or merely “air filter,” and filters that go your furnace unit in your home are known as “furnace filters.”