The AC-2102 features a Four-Stage filter assembly: Activated Carbon filter, HEPA filter, VOC filter and TiO2 filter with UV Light . Targeted to effectively remove smoke1, dust1, pollen1, PM2.51, bacteria2, mold2 and virus3 in a 1,000 cu.ft. space. Both HEPA and VOC filters are designed to operate continuously for up to 2,000 hours.

What is CADR? (Clean Air Delivery Rate)? The CADR indicates volume of filtered air delivered by an air cleaner. The higher the smoke, pollen and dust numbers, the faster the unit filters the air. https://en.wikipedia.org/wiki/Clean_air_delivery_rate

CARBON FILTER: Removes contaminants through adsorption. Adsorption means that contaminants are attracted to the surface of the activated carbon and held to it, much the same way a magnet attracts and holds iron filings. Carbon filters also act as a catalyst to change the chemical composition of some contaminants.

HEPA Filter: A high-efficiency air filter that captures 99.5% of airborne pollutant particles as small as 0.3 microns, including spores, pollen, mold, pet dander and dust.

VOC (Formaldehyde) Filter: Formaldehyde and other VOCs can be found in building materials, foam insulation, household products and fuel-burning appliances. They can prompt headaches, vomiting, rashes, asthma attacks and some are suspected to cause cancer. AC-2102 VOC honeycomb filter has 8.5oz of modified Activated Carbon impregnated with 8.5oz of Zeolite particles. Effectively removes formaldehye, toluene and VOC. Factory tested: VOC removal efficiency reaches 95%, under the following conditions: 1m³ test room; initial concentration: 1.9-2mg/m³; 4hrs testing. To read more on VOCs: http://www.epa.gov/iaq/voc.html#Health Effects

TiO2 (titanium Oxide) Filter with UV Light: Photo catalytic oxidation is achieved when UV ray combines with a TiO2-coated filter. This process creates hydroxyl radicals and super-oxide ions, which are highly reactive electrons. These electrons aggressively combine with other elements in the air, such as bacteria and volatile organic compounds (VOC), which are harmful pollutants. Once bound together, the chemical reaction takes place between the super-charges ion and the pollutant, effectively “oxidizing” or burning the pollutant. This breaks the pollutant down into harmless carbon dioxide and water molecules.

Common airborne diseases caused by viruses or bacteria: the common cold (virus), influenza or flu (virus), COVID-19 (coronavirus, or SARS-CoV-2), mumps (virus), chickenpox (virus), measles (virus), whooping cough or pertussis (bacteria), tuberculosis or TB (bacteria), diphtheria (bacteria), etc.