A method for removing noxious, hazardous, toxic, mutagenic, and/or carcinogenic compounds and/or precursor compounds from a comingled gas, liquid, and/or solid stream is described. In one embodiment, the method is used to prepare the stream for feeding to an oxidizer, such as a thermal oxidizer, to reduce the amount of particulate matter discharged by the oxidizer and includes passing the stream through an ambient or chilled temperature condenser followed by an optional gas/solid separator, and one or more gas scrubbers prior to feeding to the oxidizer.

The present disclosure is directed at a vehicular air filter with relatively high efficiency particle arresting performance along with removal of volatile organic and/or inorganic contaminants. The filter is particularly suitable for hybrid type vehicles.

An onboard aircraft inerting system includes an apparatus and method for regenerating an activated carbon media of a filter module while the aircraft is in flight. In regeneration mode, the activated carbon media is heated to a temperature sufficient to desorb the VOC contaminants adsorbed thereon and the air stream passing through the filter module is at a pressure lower than the air pressure of the air stream passing through the filter in normal inerting mode.

An onboard aircraft inerting system includes an apparatus and method for regenerating an activated carbon media of a filter module while the aircraft is in flight. In regeneration mode, the activated carbon media is heated to a temperature sufficient to desorb the VOC contaminants adsorbed thereon and the air stream passing through the filter module is at a pressure lower than the air pressure of the air stream passing through the filter in normal inerting mode.

The present invention relates to an oxygen generator integrated with an ozone removal filter such that an ozone removal filter is provided in an oxygen discharge opening communicating with an oxygen discharge hole of a water electrolytic cell constituting an apparatus for producing oxygen by using mineral water among generally used water, for filtering ozone generated with oxygen during electrolysis of water and ozone compounds, in which ozone is combined with various organic and inorganic materials contained in mineral water, such as calcium (Ca), magnesium (Mg) and silicon (Si), and thus the oxygen generator allows only high purity oxygen to pass through and to be discharged through the oxygen discharge hole.

A system for calculating maintenance predictions and making improvements to performance deficiencies to one or more components in an on-board inert gas generating system (OBIGGS) is described. The OBIGGS components include an ozone converter, heat exchanger, inlet filter, and Air Separation Module (ASM). The system comprises a prognostic health monitoring (PHM) sensor network comprising at least one respective sensor coupled to each of the components of the OBIGGS. Each at least one respective sensor is configured to output a respective data signal corresponding to a performance condition of a respective component. A control unit is operatively coupled to each component and signally coupled to each respective sensor of the PHM sensor network. The control unit includes at least one test condition algorithm configured to analyze the respective data signal to calculate the maintenance prediction for the respective component.

A compact lightweight air filtration system is disclosed. The air filtration system includes a hydrophobic particulate/coalescing filter and a cleanable ozone converter housed in a housing with an inlet and an outlet. Air flowing from the inlet to the outlet passes through the particulate/coalescing filter element and then the cleanable ozone converter to remove particulates, aerosols, liquids, and ozone.

The present invention provides for a device for reducing a volatile organic compound (VOC) content of a gas comprising a manganese oxide (MnO.sub.x) catalyst. The manganese oxide (MnO.sub.x) catalyst is capable of catalyzing formaldehyde at room temperature, with complete conversion, to CO.sub.2 and water vapor. The manganese oxide (MnO.sub.x) catalyst itself is not consumed by the reaction of formaldehyde into CO.sub.2 and water vapor. The present invention also provides for a device for reducing or removing a particle, a VOC and/or ozone from a gas comprising an activated carbon filter (ACF) on a media that is capable of being periodically regenerated.

A smart multi-modal vehicular air filtration management system including a first filter element and a second filter element disposed in a fresh air housing, wherein the fresh air housing has an inlet and an outlet. Additionally, a third filter element is provided which is disposed in a cabin housing, the cabin housing having one or more inlet. A fluid channel arranged between the fresh air and cabin housing. Finally, a diverter is included which is disposed near an outlet of the fresh air housing, wherein the diverter is configured to cause air to flow through the fresh air housing selectively through one or both of the first filter element and the second filter element.

Disclosed herein are catalyst devices for removing formaldehyde, volatile organic compounds, and other pollutants from an air flow stream, A catalyst device includes a housing, a solid substrate disposed within the housing, and a catalyst layer disposed on the substrate. The catalyst layer includes a base metal catalyst at a first mass percent and a rare earth metal catalyst at a second mass percent.