Activated carbon type

Activated carbon filters have a wide range of applications as air purifiers because they are the most reliable and highly effective absorbents among many others that absorb a wide variety of alkali gases such as odors.
Extremely fine porous surface structure with a large surface area of up to 600~1,500 m2 per gram makes the activated carbon a great absorbent.
Their forms vary from well-known granules to urethane foam deposits, sheet (felt) and honeycomb. Some of them also function as medium-performance filters.

Ion exchange type

It is an acidic and alkaline gas-compatible type using ion exchange resin as the filter medium; excellent in specific gas removal.