The pill or flake type is used in gas-purifying industries / products; such as, air purifier, poisonous gas absorption, and cigarette butt, etc.

As Shell Professor Danckwerts did a large amount of research, particularly in the fields of mixing phenomena and gas absorption, and became a noted international speaker.

Mechanically aided scrubbers are generally not used for gas absorption.

Liquid-to-gas ratios for gas absorption are often higher, in the range of 20 to 40 gallons per 1,000 actual ft3 (3 to 6 litres per actual m3).

L/G ratio illustrates a number of points about the choice of wet scrubbers used for gas absorption.

When travelling through the material, light will travel partly through the pores, and will thus experience the spectrally sharp gas absorption.

The strength of the gas absorption will depend, as given by the Beer-Lambert law, both on the gas concentration and the path-length that the light has travelled through the gas.

Even though these devices are not specifically used for gas collection, they are capable of a small amount of gas absorption because of their large wetted surface.

The product's website claims that "Oya mineral form of Zeolite" is the ingredient that facilitates the gas absorption.

Spray towers can be used for gas absorption, but they are not as effective as packed or plate towers.