Our Technology

Passive Electrostatic Pre-Filter:

This simple filter is actually one of the most critical steps in the filtration sequence because it removes the burden of larger particles from the other filter stages. This extends the life of the HEPA and Carbon filters, which are more costly to manufacture and replace. The pre-filter on the SA-700 builds a static charge in its fibers due to the friction of moving air, much like a windy day can cause static electricity in your house. These charged fibers then powerfully attract and hold dust, hair, pollen, and other airborne material. The thoughtful design of the SA-700 allows the pre-filter to be removed and cleaned easily, so it does not need to be replaced over the lifespan of the unit.

99.9 % 0.1 Micron HEPA:

A popular and proven technology for removing contaminants from your air, the membrane of the industrial grade HEPA filter in the SA-700 traps and holds particles as they pass through, preventing them from circulating. However, this technology is only as effective as the type of HEPA material used, and all HEPA fabrics are not equal in performance. The HEPA filter used in the SA-700 is the best available, and is rated to trap particles as small as 0.1 microns in size at 99.9% efficiency, which outperforms most HEPA filters on the market.

Ultraviolet Emitter:

The design of the SA-700 uses powerful Ultraviolet light in multiple beneficial ways:

• The UV light purifies the air passing through the system by destroying organic contaminants on contact. Ultraviolet light is destructive to living cells and organic substances, and is deadly to airborne contaminants like bacteria, viruses, fungal spores, pollen, and other organic-based allergens.
• Secondly, the UV energy also sanitizes internal surfaces of the SA-700 air purifier. This prevents bacteria or mold from growing in the unit and further contaminating your air.
• Third, the UV light acts as a photo-catalyst on the Ti02 membrane, causing the release of Hydroxyl Radical particles. Hydroxyl Radicals are a tremendously powerful air purification technology effective against many types of organic and chemical pollution.

Ti02 Hydroxyl Radical Technology:

Ti02 (titanium dioxide) is a common and inert substance, but when exposed to ultraviolet light, particles call Hydroxyl Radicals are created. Hydroxyl Radicals also exist naturally and play an important part in eliminating greenhouse gases and volatile organic compounds from the atmosphere, and they can do the same in your home.

Hydroxyl Radicals work by oxidizing pollutants in a manner similar to ozone, and in fact are even more effective, however they are much safer than ozone, which can damage lung tissue.

The Hydroxyl Radical technology of the SA-700 Air Purifier offers your home tremendous air purification without the potential health risks associated with ozone. Your air purifier should be the last place you could expect to find a risk of lung damage!

BioSmart™ Hydrophobic Activated Carbon Filter:

Activated Carbon is a micro-porous material which is used in many types of filtration systems because of its effectiveness at removing a wide variety of dangerous contaminants.  Because of the tremendous surface area of activated carbon, it has the ability to filter out even gaseous pollutants, volatile organic compounds, and hydrocarbons. In fact, because of its porous composition, the carbon in the SA-700 has over a square kilometer of surface area! This creates countless bonding sites for contaminants to attach and be held through a chemical attraction process called “adsorbtion”, which safely and permanently removes them from your air.

Unfortunately, moisture present in the air can negatively affect the performance of carbon filters, which is why the BioSmart™ carbon filter in the SA-700 is treated in a special process to make it moisture-resistant, or “hydrophobic”. Other carbon filters lacking this feature will saturate with water and rapidly become less effective at removing airborne contaminants.

The BioSmart™ carbon filter is of the highest quality available, and contains over 4 pounds of solid carbon, not a carbon dust coating or small quantity of granules like so many other filters on the market.

Anion Generator:

Negatively charged ions (Anions) attach themselves to airborne particles and cause them to fall out of the air. This provides relief for your sinuses and nasal passages, and makes them easy to remove from your environment by simply using your vacuum cleaner. In nature, negative ions occur in especially high quantities around moving water such as beaches and waterfalls, and they create a sense of freshness in the air when inhaled. There are numerous other documented benefits to negative ions, including improvements in lung function, and in fact many companies sell less powerful anion generators as standalone devices for hundreds of dollars! This feature is also switchable, to provide you with the most flexible air cleansing options possible.

SmartSensor Technology:

The SA-700 features a computer-controlled particulate detector which can determine an increase in pollution particles in your room, and compensate automatically by adjusting its own settings. When in this mode, you can rest assured that the unit will operate intelligently without input from you, increasing its performance as needed to match your changing environment throughout the day. It is automatic set-and-forget protection for you and your family.

EarthWise™ Environmental Advantage Design:

In the design of the SA-700, great care was taken to select mechanical components of not only the highest performance and quality, but of great efficiency as well. Low-draw LED indicators, fluorescent UV bulbs, advanced scroll fans, and ultra-stable power supplies are just a few examples. This design philosophy creates one of the most incredible room air purifiers on the market, with the capability to process the air in a 650 square foot room, and yet consume less electricity than a standard light bulb. This is truly energy efficient air purification, and benefits both the environment as a whole and your personal home environment. That’s the EarthWise Environmental Advantage!