Vacuums have been around for over a century. When the original standup models are compared to many on the market today, they actually don’t look all that different. They even function on the same principle: a motor causes suction, and the dirt and dust are then sucked into a bag. The major difference between these original models and today’s is that these older ones used disposable bags, and today’s models normally have HEPA filters that can be emptied and reused. . . . → Read More: Vacuums – Choosing The Best For You