Active Carbon Air Filters: How They Work and Why They’re Effective

If you live in a city, chances are you’re familiar with the unwelcome odors and fumes that can often fill the air. Whether it’s due to car exhaust, factories, or simply the high volume of people in close proximity to one another, polluted air is a reality for many urban dwellers. Fortunately, there are steps we can take to improve the air quality in our homes, businesses and hotel rooms—and one of those steps is using an active carbon air filter. But what exactly is active carbon, and how does it work? Let’s take a closer look.

What Is Active Carbon?

Active carbon is a type of charcoal that’s treated with oxygen to open up millions of tiny pores between the carbon atoms. This process creates a highly adsorbent material that can trap pollutants, odors, and toxins. The more surface area that’s exposed to the air, the more effective the carbon will be at filtering out impurities.

How Does Active Carbon Work?

When contaminated air passes through an active carbon filter, the particles of pollution are drawn to the surface of the carbon by a process known as adsorption. Most volatile organic chemicals (VOCs) are adsorbed by active carbon.

The RZ AIRflow Advantage

If you’re looking for an effective way to remove odors and toxins from your indoor air, look no further than RZ AIRflow. Our patented system attaches directly to your PTAC unit (the heating and cooling system often found in hotels and senior living communities) and uses activated carbon filters to capture and eliminate unwanted contaminants from your indoor air—providing you with clean, fresh-smelling air all day long. Since our system doesn’t require any additional ductwork or expensive installation costs, it’s easy on your wallet as well as your lungs!


If you’re looking for an effective way to remove odors and toxins from your indoor air, an active carbon air filter is a great option. By adsorbing pollutants on its surface, activated carbon filters cleanse the indoor air of impurities—leaving you with fresh-smelling, healthy air to breathe. To learn more about how RZ AIRflow can help improve your indoor air quality, contact us today!