DuoVac replacement central vacuum bags are equipped with HEPA type filtration, which means they trap up to 99.9% of dirt, dust, and allergens from the surfaces vacuumed as well as the air surrounding, creating a cleaner air that allows you to breathe easier.  To keep your DuoVac central vacuum functioning at peak performance, it is recommended that you check the dir level of your vacuum bags before vacuuming.  Small dust particles can keep the air from circulating when it accumulates in your bag, hence reducing the suctioning your vacuum.  There is a simple process to check your vacuum bag; if it's firm to the touch, it is suggested that you replace your vacuum bag.  If you are unsure which bag will work best with your Duo Vac system then, give us a call today at 1.954.341.2760.  One of our experts will be happy to help you find the right vacuum bag for your Duo Vac central vacuum.