Charcoal Filter Breathing Hazards

How They Work

• Activated carbon is essentially charcoal that is put through a high heating process so that millions of pores form. This increases the surface area of the filter and creates pockets, which trap gas molecules. The pores form between the carbon atoms, resulting in a material that bonds exceptionally well with carbon atoms.

Why They're Used

• Charcoal filters are essentially alternatives to odor removers like sprays, air fresheners, candles, perfumes and oils. However, such competing products only provide a temporary solution to odor problems and also add to the amount of chemicals in the house, compared to charcoal filters, which actually remove the odor and don't add additional chemicals. Charcoal filters are also ideal options for people who are either allergic to the competing methods or sensitive to them.

Limitations

• One thing that a charcoal filter won't help you with is removing carbon monoxide from the home. Carbon monoxide is an odorless gas that's often the result of accumulated tobacco smoke. And while a charcoal filter can remove the smoke odor, it won't remove carbon monoxide, which blocks blood cells from delivering oxygen to the body. In high concentrations, it can be fatal. The best ways to minimize carbon monoxide is by improving home ventilation and placing plants around the home. Damaged or worn-out charcoal filters are also not effective in controlling odors.

Other Applications

• Charcoal filters aren't just limited to home HVAC units. They also can be installed in your automobile to keep the air quality in your vehicle cabin as fresh as possible. However, compared to the more conventional paper filters, charcoal filters are more expensive. According to Tundra Headquarters, they're best for drivers that spend time in rush-hour traffic or stop-and-go driving, as they can help reduce emission odors inside the vehicle.