Pure Air Filtration announces its PureAir 4 product.
PureAir 4 targets a broad range of gasses which cause corrosion, odor and other undesirable gases.

Pure Air Filtration starts with the highest grade activated alumina to insure that the greatest possible absorbtion capacity is achieved.

This alumina is then impregnated with Potassium permaganate while being formed into a pellet.

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