A method of air pollution filtration in a vehicle is disclosed. A plurality of purification devices are provided to detect and transmit an inside-device gas detection datum, respectively, for intelligently selecting and controlling the activation of filtering the air pollution in the inner space of the vehicle. An in-car gas exchange system and a connection device are provided. The connection device receives and compares the respective inside-device gas detection datum, and selectively transmits a control instruction to drive the in-car gas exchange system and the purification devices. The movement of the air pollution is accelerated by the gas convention of the in-car gas exchange system, so that the air pollution is directionally moved toward the corresponding one of the purification devices adjacent to the air pollution for filtration. The air pollution in the inner space of the vehicle is filtered rapidly, so as to provide clean, safe and breathable air.

A detoxification device for removing pathogens from air within an environment. The detoxification device may include a filtration media for catching and retaining particles larger than about 0.3 micrometers (μm) with an efficiency of at least 99%. The detoxification device may also include a heating element having a metallic foam. The heating element may be heated upon application of an electrical current to the heating element. The heating element may, upon being heated, heat the filtration media to a target temperature that is effective to kill a pathogen.

An alternative device to a mask that blocks a patient's aerosol and avoids contamination of the patient's surrounding environment is described. The device has a flexible arm that holds an aerosol disposal pipe with one side connected to a wall, a bed, or pole attached to a floor. The second side of the flexible arm is attached to a circular or elliptical pipe that covers the face of the patient. The elliptical or circular pipe comprises of two independent moving and rotating halves to create two aerosol sucking planes. The sucking function is provided by sucking fans attached to the two halves of the circular or elliptical pipes or by a remote pump. The sucked aerosol may be filtered and released to the environment or guided to a sink P-Trap or an inlet of sewer.

In some examples, an air treatment system includes a filter, an ozone sensor, and a separator configured to separate air into a nitrogen-enriched gas and an oxygen-enriched gas. The filter is configured to remove ozone from an air stream and supply filtered air to the separator. The ozone sensor is configured to sense an ozone level of the filtered air issuing from the filter prior to encountering the separator. The air treatment system may include processing circuitry configured to monitor the ozone level sensed. The air treatment system may be part of an inerting system configured to supply the nitrogen-enriched gas to an ullage space of a fuel tank.

An air purification unit is provided for individuals seated at a table that has a unit body adapted to be mounted at a mounting height at or above the approximate head height of individuals seated at the table, and in a position between the individuals. A motorized fan system is provided within the unit body that is configured to draw air from at least one inlet proximate the bottom of the unit body. A filter is positioned in communication with the inlet and the fan system for filtering air drawn through the inlet. The unit body has at least two ducted outlets disposed radially or axially for discharging filtered air toward the individuals, while the unit prevents cross-flow of breath air between the individuals.

A system and related method for air filtration and therapeutic relief are provided. The system includes a base layer, a substrate and a plant medium layer, which can be live, preserved or dormant moss. In some instances, the system also includes one or more netting layers. The system can also include a watering system, or air circulation system, or both.

A system is provided for monitoring the condition of a filter incorporated into a vehicle or other apparatus in order to identify when the filter should be cleaned or replaced is provided. This system generally comprises a receiving device and a smart filter element. The smart filter element a filter media having a first side and a second side; a frame comprising a plurality of walls that surrounds at least a portion of the screen; and a sensor configured to gauge pressure and to communicate wirelessly with the receiving device. The sensor being located approximate to the second side of the filter media.

Disclosed is a vehicle comprising a wheel with an associated air-cooled motor, and a ventilation path for passing outside air from outside the vehicle into the motor. An electrostatic device is disposed proximate to the ventilation path. When the electrostatic device is energized, particles or debris in the outside air are attracted toward or repelled from the electrostatic device, such that the particles or debris are removed from the outside air before the outside air enters the motor.

A hydraulic fracturing system for fracturing a subterranean formation includes a support structure that includes an electric powered pump, arranged in a first area, the electric powered pump powered by at least one electric motor, also arranged in the first area. The system further includes a variable frequency drive (VFD), arranged in a second area proximate the first area, connected to the at least one electric motor to control the speed of the at least one electric motor. The system includes a transformer, arranged in a third area proximate the second area. The system also includes a slide out platform integrated into the first area, the slide out platform being driven between a retracted position and a deployed position.