What should I look for in a carbon filter?

How do you select activated carbon?


  1. A high-grade raw material is pulverized to a powder.
  2. A binder is added.
  3. The product is reagglomerated into briquettes.
  4. The briquettes are crushed.
  5. The briquettes are sized.
  6. The carbon is baked.
  7. Finally, the carbon is thermally activated.

What MERV rating are carbon filters?

While the main purpose of carbon furnace filters is to remove odors, unofficially our carbon air filters are most similar to providing air filtration at a MERV 8 level.

Are carbon filters worth the money?

The carbon air filter may cost more than the particulate filter which does not have carbon. If you drive in slow-moving traffic often or encounter strong odors on your drive, the investment in a carbon cabin air filter might be worth it.

Do you have to wet activated carbon?

Adding 10 to 30 percent moisture can reduce the dustiness of most powdered carbons. Activated carbon is not toxic. … In such cases, it may be best to operate with the carbon partially wet with water, as is typically done in solvent recovery plants, or to reduce the vapor concentration by adding additional air.

Is MERV 13 too restrictive?

“MERV” is the standard rating system used in the HVAC industry to determine how well a filter works. … And MERV 13 is the highest rating recommended for home use. (Anything above it will restrict airflow too much and could damage your HVAC system).

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What MERV level should I use?

We do recommend that everyone uses filters that have at least an 8 MERV rating. These filters will remove the majority of pollutants from your indoor air. If you have serious medical conditions making it difficult to breathe, you might want to get a filter with MERV 9-12 rating.

Can my HVAC handle MERV 11?

The short answer is that it can, but it’s not really an issue except under extreme circumstances. Most modern HVAC systems have no problem working with higher MERV filters, which is why millions of homeowners depend on them.

How do I know if my carbon filter is bad?

Smell the Active Carbon

Compare its smell to that of unused activated carbon. This should be done after 3-4 months of installation. The moment you won’t sense the smell of fresh carbon from your filter, its time to replace it. This is a sign that the active carbon is fully used and it can’t be used anymore.

Can you wash activated carbon filters?

A: A carbon filter can not be usefully washed. Carbon chemically bonds loosely with various (airborne) chemicals. Water will not wash off these bonded chemicals.

Are carbon filters safe to breathe?

Activated carbon (also called activated charcoal, or active carbon) is used to adsorb gases from the air (among many things). It is most effective at filtering volatile organic compounds (VOCs) and odours. … On top of this, activated carbon is generally considered safe and is not dangerous (WebMD).