Activated Carbon is a specially treated carbon that has been exposed to heat around 800-900 degrees Celsius. The great thing about activated carbon is that it has a large internal surface area and can trap a lot of impurities inside it.

The term Airborne is used to describe any particles or substances that float in the air. Airborne particles are the reason that air filters are used to clean air in a given area.

Air Changes per Hour is a term used to describe the amount of times per hour that an air purifier can clean and re-circulate all of the air in a room.

An allergen is a normal substance that causes an acute defensive reaction in a person's immune system. Common allergens are pet dander, smoke, and pollen, although the list of possible allergens is long and varied. When a person has a reaction to an allergen that person is said to be allergic to it.

Tiny scales of animal skin.

Bacteria are microscopic, single-celled organisms that have a cell wall and a specific shape depending on the type of bacteria. Bacteria have no easily identifiable nucleus. There are many types of bacteria, and although many are harmful to humans there are some that actually help.

The term “Biohazard” is used to describe any time of biological waste. Often, this biological waste is pathogenic in nature or contaminated in some way.

The Black Wall is an occurrence common with ionic air purifiers. The “Black Wall Effect” happens when the air around an ionic type air purifier becomes negatively charged. This negatively charged area causes airborne particles to stick to surrounding surfaces (often the wall behind the device) and cause a build up of dirt and bacteria. Black Wall c [..]

A type of air purifier that uses ozone to clean the air, a Coronal Discharge device is sometimes referred to as a “thunderstorm in a box”. The air inside a coronal discharge device is charged with between 5,000 and 10,000 volts of electricity. The massive shock causes unstable bonds to form between single atoms of oxygen (O) and Oxygen molecules (O [..]

Clean Air Delivery Rate measure of an air purifier's ability to reduce smoke, pollen & dust particles in the 0.1 to 11 micron size range. For maximum effectiveness, shoot for a CADR of at least 2/3 your room's area. For example, a 10" x 12" room -120 square feet - would require an air cleaner with a tobacco smoke CADR of at [..]