Abstract: The carbon dioxide filter system includes a reservoir, a solvent, an injector coupled to the reservoir, an exhaust port, and a collection chamber. The solvent is disposed in the reservoir. The injector, the exhaust port, and the collection chamber are each coupled to the reservoir. The solvent includes a hydroxide. The injector includes a fan configured to direct polluted air containing carbon dioxide to the reservoir. The polluted air containing carbon dioxide reacts with the hydroxide of the solvent. The reaction may separate the carbon dioxide from the air, thus forming a liquid filter. The reaction produces a by-product that is separable from the solvent.

Abstract: A mask assembly comprising a face covering portion, a pocket connected to the face portion and positioned to cover a wearer’s nose and mouth, where in a filter is removably inserted into the pocket, the filter comprising a porous hydrophobic and lipophobic layer, a diamond - like carbon coated copper layer, and a non- woven fabric layer. A filter containing at least one porous hydrophobic and lipophobic layer, at least one diamond like carbon coated copper layer interposed between two non-woven fabric layers, and at least one additional non- woven fabric layer. A filter comprising at least one porous hydrophobic and lipophobic layer, at least one diamond - like carbon coated copper layer, and at least one non - woven fabric layer, the at least diamond-like carbon coated layer is between the at least one porous hydrophobic and lipophobic layer and at least one non - woven fabric layer.

Abstract: An air processing system is disclosed. The system includes a mobile robot, and the robot includes an intake module, the module includes a manifold, a first airfoil disposed on the manifold and configured to allow air of an area designed to have its air cleaned to enter the manifold, a second airfoil disposed one the manifold opposite the first airfoil configured to allow air from the area to enter the manifold, and a collector provided in between the first airfoil and the second airfoil and disposed on the manifold configured to receive air from the manifold and thus filter the air, and the system further includes a controller configured to provide one of remote control and autonomous control of the mobile robot.

Abstract: A mask assembly, including a face covering portion, a pocket connected to the face portion and positioned to cover a wearer's nose and mouth, a connection portion operationally connected to the face covering portion, and a filter removably inserted in the pocket. The filter further includes a porous hydrophobic and lipophobic layer, a diamond-like carbon layer, an activated carbon layer, an N95 membrane, an anti-stick cloth layer, and a non-woven fabric layer.

Abstract: An apparatus includes a lockable element (16) and a buckle (12) that includes a base (28), a latch (42), a Hall effect device (60), and a pair of magnets (68) and (74). The base (28) defines a passage (32) into which the lockable element (16) is insertable. The latch (42) is made of a ferromagnetic material and is movable from a non-locking position to a locking position in which it engages the lockable element (16). The Hall effect device (60) is disposed between the magnets (68) and (74). The magnetic fields of the magnets (68) and (74) oppose each other. In the locking position, the magnets (68) and (74) provide a net magnetic field of a first magnitude that acts on the Hall effect device (60). In the non-locking position, the magnets (68) and (74) provide a magnetic field of a second magnitude acting on the Hall effect device (60) that is different than the net magnetic field of a first magnitude.