What You Can't See Can Hurt You!
In today's air tight homes, indoor air quality is a growing concern. Most household dust contains dust mites, mold, mildew, pollen and animal dander. Many of these contaminants are circulated through the central air systems in modern homes and can aggravate asthma and allergies.  These before and after photos to the show you how much dust can accumulate in your heating and cooling ducts.

At Peterman Heating And Cooling, we use a dual unit push-pull system, unlike some of our competitors who use a smaller single unit which has a brush and vacuum on a single hose.  The dual unit system has many advantages including superior suction and filtering (the pull part) with a three stage HEPA filter to ensure that all the contaminants in the ducts are removed and in less time.  The push part is a separate unit that has a specially designed brush to progressively clean the ducts as it moves further and further into the ductwork cleaning the walls while pushing the contaminants towards the vacuum with the HEPA filter. 

The all-in-one units our competitors use have to be smaller so they can carry and move the unit into smaller spaces.  Because of this, these units can only deliver a small percentage of the suction our vacuum unit produces.  As filters get clogged with the debris that is removed from the ducts, the suction power will decrease which will require the filter to be changed frequently or the unit will not be able to remove everything in the ducts.  With our more powerful stand-alone suction unit that we use, the filter is much bigger allowing more air to flow through the filter while trapping a much larger amount of contaminants before the suction power is reduced.