The Science of SafeHome Filters

Adapting proven industrial technology to create healthier homes

Have you ever wondered why airports don’t smell like parking lots full of running jet engines, or how nail salons manage to control odors and fumes? We did because we wanted the best solution for removing hazardous chemicals from our home, in addition to irritating allergens.

Activated carbon plus much more. Activated carbon is great for removing odors and some chemicals, but it is ineffective against many common household gases, such as formaldehyde. That is why every chemical and odor filter we build also contains potassium permanganate-based FormaldaSorb™.

This blend is what makes our filters so powerful. In fact, Duos are used by many as upgrades for shop air cleaners so that they can remove fumes from paint, varnish and other finishes. These filters replace many models built by Jet, Delta, Powermatic, Steel City, and JDS Air-Tech.

Developing a truly effective gas mask that can work in home air systems required creative thinking and collaboration with the leading industrial pollution filter manufacturer.  All of our solutions address both allergen and chemical pollution, because each can present a significant health threat. Learn which chemicals and odors SafeHome Filters address…

FormaldaSorb™ removes formaldehyde and other harmful gases.

While activated carbon is highly effective in removing a broad range of chemicals, it is not effective with certain pollutants including volatile, low molecular weight gases like formaldehyde. Formaldehyde is commonly emitted from glues used in pressboard and plywood. These materials are increasingly prevalent today, from furniture to subflooring.

Removal of formaldehyde, sulfur compounds and nitrogen oxide compounds require strong oxidizing chemisorbents, such as potassium permanganate. Chemisorbants work a bit differently than adsorbents like activated carbon. After attracting gases to their surface as adsorbent do, chemisorbants then react chemically to these gases, essentially forming an irreversible bond. All SafeHome Filters include alumna impregnated with potassium permanganate to remove these types of gases.

What is activated carbon and how does it remove chemicals and odors?

Activated carbon is super-heated carbon in a controlled environment with no oxygen present.  This heating causes tiny, nanometers wide cracks, creating an immense surface area that attracts gaseous contaminants through a process called adsorption. A critical issue is how much surface area is created through both the activation process and how much carbon can be used without negatively impacting home air systems.

More surface area increases the effectiveness and quantity of gases that can be adsorbed. This is because the surface attracts and binds gases with bonds called Vanderwal forces. These are relatively weak bonds compared to chemical reactions like potassium permanganate’s reaction with formaldehyde, explained below.

We maximize the surface area of activated carbon in our SafeHome Filters through both the quality and quantity of activated carbon. With 125 grams of carbon and FormaldaSorb™ per square foot, a 24 x 24 inch SafeHome System has more than 2,400,000 feet of surface area that actively adsorbs chemicals and odors from household air.

For an interesting article on how activated carbon works using 1,000 tons of activated carbon to clean up a chemical plant explosion, click here…