A modular filtration device is composed of a modular docking plate having at least one quick disconnect plumbing coupling; at least one electrical connector; and at least one alignment feature for aligning and receiving a modular filter; and a modular filter composed of a docking face having: at least one quick disconnect plumbing coupling; at least one electrical connector; and at least one alignment feature that mates with an alignment feature of the modular docking plate to provide proper alignment of the filter with the docking plate, engagement of the quick disconnect plumbing couplings, engagement of the electrical connectors, and engagement of the locking mechanism. The modular filtration device comprises a locking mechanism to hold the filter in place during operation. A modular filtration system is composed of a plurality of the filtration devices.

An electrostatic adsorption mask is provided. The mask comprises two straps, a mask body, a filtering layer and a tiny power. The filtering layer is located in the mask body and comprises a first carbon nanotube layer, a second carbon nanotube layer and an insulated porous layer. The insulated porous layer is located between the first carbon nanotube layer and the second carbon nanotube layer. The first carbon nanotube layer and the second carbon nanotube layer are electrically coupled with the tiny power. An electric field is existed between the first carbon nanotube layer and the second carbon nanotube layer.

A face mask having a positive air flow by use of an attached portable air purification unit. The device is used to filter and purify inhaled air, making it easier for individuals to comfortably wear a face mask for public health and safety. An outtake filter inhibits contaminated air from being expelled by the mask wearer. The portable air purifier is powered by means of rechargeable battery power using a USB connector, allowing static or dynamic use.

The invention herein disclosed is a system that supports sampling, testing and filtering of air in selected small volumes of air within a larger air pool.

An air cleaner includes a first air cleaner having an output part, a second air cleaner configured to be electrically connectable to the first air cleaner, a power adapter detachably provided to supply power to the second air cleaner, a first input terminal provided in the second air cleaner and configured to be electrically connected to the output part, a second input terminal provided in the second air cleaner and configured to be electrically connected to the power adapter; and a switch configured to electrically connect the first input terminal to the output part or to electrically connect the second input terminal to the power adapter.

Embodiments of the present application relate to the field of air purification devices, and disclose an air purification system and an Internet of things artificial intelligence control device, applied to both sides of an outdoor street and an associated space, comprising: a housing, an electrostatic dust removal air purifier, a controller, and a fan; The electrostatic dust removal air purifier, the controller and the fan are all disposed in the said housing; The front side of the housing is configured with an air inlet and an air outlet, herein the air inlet is for transmitting outdoor polluted air, and the air outlet is for transmitting purified air; The electrostatic dust removal air purifier and the fan are both connected to the said controller; The controller controls the fan to transmit outdoor air to the housing through the air inlet, and controls the electrostatic dust removal air purifier to purify the said outdoor air, after the air purification is completed, the purified air is discharged by the fan through the air outlet, so that the purification of the outdoor air is realized, to solve the technical problem due to the poor air circulation of the street canyons, the difficulty in diffusing pollutants, and the inability to reduce the pollution on both sides of the street.

A personal protective apparatus, having a wearable support member and a mesh shield securable thereto. The mesh shield may include first and second air-permeable conductive layers secured to the wearable support member and a first air-permeable non-conductive layer received between the first and second air-permeable conductive layers to separate them, and a portable power supply coupled to the mesh shield with a negative high voltage lead to the first air-permeable conductive layer and a positive high voltage lead to the second air-permeable conductive layer. The mesh shield may be a flexible mesh shield, and include at least one air-permeable layer secured at a first layer upper end to the wearable support member to hang from the wearable support member, the at least one air-permeable layer including at least one of an anti-virus material and an anti-microbial material. A fibrous filter layer may overlay an outer surface of the mesh shield.

An apparatus is used with supplied power for treating air in an environment. A housing is mobile in the environment and has an intake and an exhaust. At least one prime mover disposed in the housing between the intake and the exhaust is operable to move the air in the environment through the housing from the intake to the exhaust. At least one ultraviolet light source disposed in the housing is connected in electrical communication with the supplied power and is configured to generate ultraviolet radiation in at least one a portion of the housing through which the moved air passes from the intake to the exhaust. At least one permeable barrier disposed in the housing is configured to impede the moved air flow therethrough up to an impedance threshold. The at least one permeable barrier is connected in electrical communication to the supplied power and being heated to a surface temperature.

A filter arrangement for filtering dust-laden air generated by a hand-guided power tool having a motor features a filter cartridge having a hollow casing with a longitudinal extension along a longitudinal axis, a hollow filter element located inside the hollow casing, having a longitudinal extension along the longitudinal axis, an air inlet port in the hollow casing, pneumatically connected to the power tool to allow the dust-laden air generated by the power tool to flow into the hollow casing, and an air outlet port in the hollow casing, to allow filtered air to leave the filter cartridge. An external chamber of the filter cartridge is formed between the hollow casing and the hollow filter element. An internal chamber is formed inside the hollow filter element. The internal chamber is closed by a conical head portion at a first end of the internal chamber facing towards the air inlet port. The external chamber is in pneumatic connection with the air inlet port and the internal chamber at a second end opposite to the first end is in pneumatic connection with the air outlet port. The filter arrangement includes an active airflow generating device being in pneumatic connection with the air outlet port and the internal chamber of the filter cartridge in order to generate or support the airflow through the filter cartridge.

A Diesel Particulate Filter (DPF) assembly configured to be incorporated in the exhaust gas stream, the DPF assembly comprising: Quartz/Composite ceramic mixture disposed as filter elements, mechanical support components and optional electrical soot removal solutions including electrical, di-electrical and microwave solutions.