Does Carbon Filter Go Before or After HEPA Filter? A Comprehensive Guide

Learn about how to install a Cannon air purifier with both HEPA and activated carbon filters correctly for maximum efficiency.

Does Carbon Filter Go Before or After HEPA Filter? A Comprehensive Guide

If you use a Cannon air purifier, you can install an activated carbon filter and a HEPA filter simultaneously. In the fan opening, place the HEPA first, and then place the carbon filter on top. This is to reduce the grain of particles the more it is introduced into the filter. The rough filter can be cleaned, while the carbon filter traps chemicals and odors that could damage the HEPA filter.

The HEPA filter then traps any remaining particles. Using a pre-filter will prevent large debris from getting stuck in the HEPA filter. This will give your HEPA filter more space to capture the microfine particles for which it is designed. Odors, odors, and other volatile organic compounds simply pass through the HEPA filter.

They are not stopped by a mechanical barrier. Air purifiers use both HEPA and carbon-based filters, but not always in the same cleaner. These two filtration methods may seem similar in that they trap particles within the filter surface. However, you'll want to use the two different leaks if you have certain issues. The surface area per gram of any particular activated carbon filter is not usually measured by producers of air purifiers per se. These enriched filters, used by Blueair air purifiers, for example, are designed to remove the smallest gaseous pollutants from the air, such as ozone and carbon monoxide.

An activated carbon air filter is a filtration media dedicated to odor and VOC removal made of highly porous carbon. As a first line of defense, they filter out a lot of particles before the particles reach the HEPA filter. Because these two air filters are made differently, they work differently and do completely different things. After the particulate matter passes through the HEPA filter, these filters use UV light, specifically UV-C lights, to further reduce the percentage of particulate matter in the air. This means that all carbon cells will have the same exposure to incoming air and will absorb an equal amount of contaminants over the life of the filter.

Controlled tests found no benefit from placing the air filter on the back (pulling) compared to the front (pushing). Depending on the device, the use and the filter itself, activated carbon filters should be changed every 3 to 9 months. But do activated carbon filters remove carbon dioxide? No, carbon filters are extremely limited when it comes to carbon dioxide removal. Alen BreatheSmart 75i, one of the best air purifiers currently on the market, has an optional 3.7 lb active carbon filter. The easiest way is to first look at a professional dry filter stack to learn how a filter stack is made.

These filters are commonly used in industrial air cleaning systems and in stand-alone units for domestic use. I recently wrote a resource that lucidly explains the difference between HEPA and HEPA air filters. The HEPA filter in an air purifier is efficient at removing microscopic particles such as smog and smoke. In conclusion, when using an air purifier with both HEPA and activated carbon filters, it's important to remember that they work differently and should be placed in different positions in order for them to be effective. The HEPA should be placed first in order to capture larger particles before they reach the activated carbon filter which is designed to trap odors and VOCs. It's also important to remember that activated carbon filters are not effective at removing carbon dioxide from your home's air so if this is something you're looking for you'll need to look for an alternative solution. Finally, it's important to remember that both HEPA and activated carbon filters should be changed regularly in order for them to remain effective.

Suzette Childres
Suzette Childres

Extreme sushi junkie. Typical zombie fan. Friendly music enthusiast. Professional pop culture geek. Hipster-friendly social media evangelist. Typical pop culture scholar.

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