Abstract: In one aspect of the invention there is provided a gas scrubbing system for removing contaminants from a flow of fluid, comprising a container having an interior volume, an inlet for receiving the flow of fluid and an outlet for dispensing the stream of fluid, a treatment liquid, a porous medium positioned in the interior volume, between the inlet and outlet, said porous medium providing a high surface area to facilitate chemical interactions between the fluid flow and the treatment liquid and means to apply the treatment liquid onto the porous medium. A contact cell aspect of the porous medium and a method aspect are also provided.

Abstract: An air/liquid exchanger comprising an open-cell foam 102 supporting a liquid sorbent. The exchanger may be used for removing trace gaseous components from the air.

Abstract: A second-generation rotating biofilter employing microorganisms in a microbiological film (biofilm) “mineralizes” contaminants, such as VOCs and odoriferous contaminants. Contaminated fluid, such as air from manufacturing processes, is directed radially outward from a perforated pipe through porous foam attached to the pipe. The pipe serves as the axis upon which layers of foam suitable for supporting formation of biofilms are placed. In one embodiment, an octagonal-shaped drum incorporates eight baskets. In each basket, foam is layered outwardly from the pipe in trapezoidal-shaped layers each of approximately 3.8 cm thickness, each layer separated by air gaps of approximately 1.3 cm to prevent clogging. Seven layers in each of eight baskets comprise the octagonal drum. When the drum is sprayed on one side, water soaks the media and it is heavier on that side, thus facilitating rotation of the drum. Further, the biofilms are supplied with moisture and supplemental nutrients as needed.

Abstract: A system for removing at least one pollutant from an air stream exhaust, the system including a plurality of enclosures through which the air stream exhaust is directed to cool the air stream exhaust, a plurality of barriers within each respective enclosure to impede a flow of the air stream exhaust, a liquefied material, comprising bone glue, gelatin and/or skin glue, mixed with water provided within at least one of the plurality of enclosures, and wherein the air stream exhaust passes therethrough the liquefied material and at least one pollutant attaches to the liquefied material.

Abstract: The invention is a humidification and filtration mask having an open cell foam reservoir attached to the facial or inner surface of a paper filtration mask. The reservoir provides for evenly wetting the paper mask by capillary action, after being charged with water. The device offers low inspiratory airway resistance compared to other art and is lighter and less costly.