An inlet filter and method of use are disclosed. In one aspect, the inlet filter comprises a frame, filter material, a feed stream inlet, and a filtrate outlet. The frame is configured so an exterior of the frame is shaped like a wedge. In another aspect, the method comprises inserting an inlet filter into a storm sewer inlet. The inlet filter can be one of a plurality of inlet filters inserted into the storm sewer inlet, the filters cooperating to filter a feed stream entering the storm sewer inlet. In a third aspect, a system comprises a plurality of inlet filters configured to be coupled together to filter a feed stream to a storm sewer inlet. The system can be configured so that the width of the plurality of filters is adjustable. For example, a first inlet filter and second inlet filter can be slidably engaged with a connecting filter.

A method and apparatus for preventing the escape of hazardous materials from fluid flow control systems of the character used by municipalities for carrying runoff storm water away from streets and populated areas.

An apparatus and a method are provided for a heating, ventilation, and air conditioning (HVAC) home air filter to remove airborne molecular contaminants and volatile organic compounds (VOCs) from air within residential spaces. The HVAC home air filter includes a supportive frame having a shape and size suitable to orient the HVAC home air filter within a residential HVAC system. A filter medium is retained within the supportive frame to remove the airborne molecular contaminants and VOCs from air flowing through the residential HVAC system. The filter medium includes a combination of media layers configured to exhibit a relatively high filtration efficiency and a low air pressure drop across the filter medium. The supportive frame includes a plurality of elongate sections and corner sections disposed along perimeter edges of the filter medium to support the filter medium within the residential HVAC system so as direct air through the filter medium.

The present invention provides a storm water pretreatment chamber. The storm water pretreatment chamber includes: a base, an inlet sidewall, a first sidewall, a second sidewall, a filter sidewall, a handle, a first locking mechanism, a second locking mechanism, a first lifting cable, and a second lifting cable. Methods of treating storm water are also provided.

An inlet filter and method of use are disclosed. In one aspect, the inlet filter comprises a frame, filter material, a feed stream inlet, and a filtrate outlet. The frame is configured so an exterior of the frame is shaped like a wedge. In another aspect, the method comprises inserting an inlet filter into a storm sewer inlet. The inlet filter can be one of a plurality of inlet filters inserted into the storm sewer inlet, the filters cooperating to filter a feed stream entering the storm sewer inlet. In a third aspect, a system comprises a plurality of inlet filters configured to be coupled together to filter a feed stream to a storm sewer inlet. The system can be configured so that the width of the plurality of filters is adjustable. For example, a first inlet filter and second inlet filter can be slidably engaged with a connecting filter.

An electroceutical system integrated into an article of personal protective equipment (PPE) like a face mask. The system consists of an electrochemical cell consisting of an anodic zone capable of serving as an anode, a cathodic zone capable of serving as a cathode and, optionally, a selectively conductive switch zone electrically couplable to and separating the anodic and cathodic zones and serving to switch on and off current flow between the anodic and cathodic zones.

A filtration article for using in personal protective equipment (“PPE”) that includes one or more layers. The article has an external side for facing side the environment and an internal side for facing the body of a user. The article is air permeable but has a porosity sufficient to entrap and thereby filter selected infectious agents (IAs). The one or more layers comprise structures providing two or more of the following functional features selected from the group of: (1) a structure with oligodynamic materials for inactivating the selected IAs; (2) a structure of carbon fibers or particles for moisture management and/or conductive cooling; (3) a knit or woven structure having yarns in a denier gradient that causes wicking of water from the internal side of the mask toward the external side; (4) an energized or energizable structure that subjects entrapped IAs to current, charged particles, electrostatic discharge, resistive heating, IR heating and/or disruptive electromagnetic energy; and (5) a hydrophobic structure forming an external surface of the external side for repelling droplets and other moisture from absorbing into the surface.

Disclosed is a method and device for inactivating or killing airborne bacteria, fungi, molds and viruses by passing the air through a filter material formed of a fabric having particles of zinc disposed in discrete physically isolated locations, wherein the particles of zinc and oxygen from the air form half cells of a battery whereby to create an electrical field that inactivates or kills airborne bacteria, fungi, molds and viruses passing through the filter material.

A cartridge for applying an electromagnetic field (EMF) to at least one toxin in a wound in the skin of a person or animal is provided. The cartridge includes a power supply, a controller coupled to the power supply and providing a voltage between about 0.2V and 3V to an array of electrodes configured to transmit the EMF to the skin about the wound site. A cartridge for applying an ultrasonic field to at least one toxin in a wound in the skin of a person or animal is also provided. The ultrasonic cartridge may include a power supply, a controller coupled to the power supply and providing a voltage to at least one sonotrodes configured to transmit the ultrasonic field to the skin about the wound. The cartridge may also include a sensor for measuring the resistance or impedance in the tissue to be treated and the controller can adjust the ultrasonic field based on the impedance or resistance.

A face mask include a bulbous area that reduces contact between the wearer and the mask, with the inner surface texture and material adapted to be comfortable to the wearer. The bulbous area may be equipped with a filter retained by slots at the edge of the bulbous area, with the inner surface texture and material of the filter also adapted to be comfortable to the wearer. The mask may be knit with seamless transitions between wearer-contacting surfaces and the bulbous area, which enhance the comfort of the mask. The mask may include silvered yarns for antimicrobial properties. Furthermore, the bulbous area increases the effective surface area of the mask on both inhalation and exhalation, unlike pleats that collapse on inhalation.