A fluid decontamination apparatus is provided having a container body with a plurality of three-dimensional open structure (3DOS) substrates spaced about therein, wherein a contaminated fluid flowing through the container body will contact the 3DOS substrates. Nozzles can be inserted and secured within inlet apertures disposed about the container body, configured to inject the contaminated fluid with/without air to induce the occurrence of hydrodynamic cavitation. The substrates can be porous and permeable enabling the contaminated fluid to flow therethrough, wherein the fluid flow passageway through the pores extends the volume of contaminated fluid exposed to turbulent and cavitation inducing flow conditions. Moreover, the 3DOS substrates may be coated with one or more types of catalysts so as to initiate chemical reactions. As such, the extended exposure of the contaminated fluid to hydrodynamic cavitation forming conditions, along with the chemical reactions carried out on the porous surfaces, enable an increased number of toxic species and unwanted organic compounds to be destroyed and/or altered, thereby enhancing the decontamination of the flowing fluid.

A vacuum filter apparatus is used to induce the influx of polluted air through a replaceable motor driven filter to remove airborne particulate pollutants. The apparatus comprises a frame with an inlet and outlet. The filter is covering the inlet while a vacuum generator is mounted on a hinged lid that covers the outlet. The filter is stretched over a drive roller and wrapped around a passive roller. The driver roller is connected to a motor through a gear box. The vacuum generator includes at least one blower that induces negative pressure inside the frame. A controller is used to control the normal operation of apparatus and alarms a user with the need of filter replacement. A lift assembly provides attachment of the apparatus to any extraneous carrier, thus, achieving substantial cleaning of polluted air right at fire/demolition sources when deployed in air by drones, lifts, etc.

A fluid decontamination apparatus is provided having a container body with a plurality of three-dimensional open structure (3DOS) substrates spaced about therein, wherein a contaminated fluid flowing through the container body will contact the 3DOS substrates. Nozzles can be inserted and secured within inlet apertures disposed about the container body, configured to inject the contaminated fluid with/without air to induce the occurrence of hydrodynamic cavitation. The substrates can be porous and permeable enabling the contaminated fluid to flow therethrough, wherein the fluid flow passageway through the pores extends the volume of contaminated fluid exposed to turbulent and cavitation inducing flow conditions. Moreover, the 3DOS substrates may be coated with one or more types of catalysts so as to initiate chemical reactions. As such, the extended exposure of the contaminated fluid to hydrodynamic cavitation forming conditions, along with the chemical reactions carried out on the porous surfaces, enable an increased number of toxic species and unwanted organic compounds to be destroyed and/or altered, thereby enhancing the decontamination of the flowing fluid.

An air cleaner and an oil mist filter are disclosed. The air cleaner includes a main body, and a filter device. The filter device includes at least one dust filter configured to filter external air and an oil mist filter configured to filter oil mist. The oil mist filter includes a stationary filter including a plurality of first baffles, and a movable filter including a plurality of second baffles respectively corresponding to the plurality of first baffles. The movable filter is movably disposed on one side of the stationary filter to be moved to first or second position. The oil mist filter is provided with a first air path in the first position, the first and second baffles are positioned closest to each other. The oil mist filter is provided with a second air path in the second position, the first and second baffles are farthest away from each other.

A fluid decontamination and apparatus and a method of fluid decontamination, introducing, via an inlet nozzle, a contaminated fluid from a fluid source into a continuous pipe section. The inlet nozzle is coupled to the continuous pipe section that enables fluid flow therethrough. Hydrodynamic cavitation is generated upon exiting the inlet nozzle within the continuous pipe section by spraying and evenly distributing the fluid that induces cavitation formation within the fluid across a three dimensionally open structured (3DOS) substrate disposed within the continuous pipe section. The 3DOS structure is positioned proximate to the inlet nozzle such that the hydrodynamic cavitation generated by the inlet nozzle enters the 3DOS substrate and the 3DOS substrate maintains the hydrodynamic cavitation of the fluid flow into the 3DOS substrate to enable destruction of toxic species and unwanted organic compounds contained in the contaminated fluid.

A fluid decontamination apparatus is provided having a container body with a plurality of three-dimensional open structure (3DOS) substrates spaced about therein, wherein a contaminated fluid flowing through the container body will contact the 3DOS substrates. Nozzles can be inserted and secured within inlet apertures disposed about the container body, configured to inject the contaminated fluid with/without air to induce the occurrence of hydrodynamic cavitation. The substrates can be porous and permeable enabling the contaminated fluid to flow therethrough, wherein the fluid flow passageway through the pores extends the volume of contaminated fluid exposed to turbulent and cavitation inducing flow conditions. Moreover, the 3DOS substrates may be coated with one or more types of catalysts so as to initiate chemical reactions. As such, the extended exposure of the contaminated fluid to hydrodynamic cavitation forming conditions, along with the chemical reactions carried out on the porous surfaces, enable an increased number of toxic species and unwanted organic compounds to be destroyed and/or altered, thereby enhancing the decontamination of the flowing fluid.

A fluid decontamination and apparatus and a method of fluid decontamination, introducing, via an inlet nozzle, a contaminated fluid from a fluid source into a continuous pipe section. The inlet nozzle is coupled to the continuous pipe section that enables fluid flow therethrough. Hydrodynamic cavitation is generated upon exiting the inlet nozzle within the continuous pipe section by spraying and evenly distributing the fluid that induces cavitation formation within the fluid across a three dimensionally open structured (3DOS) substrate disposed within the continuous pipe section. The 3DOS structure is positioned proximate to the inlet nozzle such that the hydrodynamic cavitation generated by the inlet nozzle enters the 3DOS substrate and the 3DOS substrate maintains the hydrodynamic cavitation of the fluid flow into the 3DOS substrate to enable destruction of toxic species and unwanted organic compounds contained in the contaminated fluid.

A fluid decontamination apparatus is provided for, introducing, via an inlet nozzle, a contaminated fluid from a fluid source into a continuous pipe section. The inlet nozzle is coupled to the continuous pipe section that enables fluid flow therethrough. Hydrodynamic cavitation is generated upon exiting the inlet nozzle within the continuous pipe section by spraying the fluid that induces cavitation formation within the fluid across at least one three dimensionally open structured (3DOS) element disposed within the continuous pipe section. The 3DOS element may be sequentially arranged foam rings defining an inner flow channel, or may be one or more solitary structures. The 3DOS structure is positioned such that the hydrodynamic cavitation generated by the inlet nozzle enters the 3DOS element, which maintains the hydrodynamic cavitation to enable destruction of toxic species and unwanted organic compounds contained in the contaminated fluid.