Installing a 4-inch furnace filter is a great example of why the way a filter is set up matters just as much as the filter itself. In many homes, a 1-inch filter is placed loosely in the ductwork with a small cutout, which often means it never seals properly. When that happens, air can bypass

Particulates — the dust, dander, pet hair, skin cells, and microscopic debris floating through your home — may seem harmless. But they have a direct impact on how you breathe, how often you get sick, and even how tired you feel throughout the day. In this article, we’ll break down why particulate matter is harmful

A dirty furnace isn’t just inefficient — it can become genuinely unsafe. In the field, we routinely inspect systems that look perfectly fine from the outside but tell a very different story once the panel comes off. The transcript shared above captures exactly what happens when a furnace is allowed to operate with the wrong