A system including a head-mounted device having a face shield; a respirator coupled to or embodied in the head mounted device; a light having a light intensity; a light detector, and a computing device communicatively coupled to the at least one light detector that receive from the light detector data indicting a type and intensity of light, and determine that the light matches a particular type of light and whether it exceeds a threshold, and on the basis of this determination, modifies the intensity of the light.

A flexible method to provide a variety of value-added coatings to a piece of jewelry or a group of jewelries is disclosed. Atomic Layer Deposition (ALD) and Molecular Layer Deposition (MLD) technique is implemented to deposit a layer of conformal coating on intended jewelry surfaces, including both exterior and interior surfaces, to enhance a vast majority of process-driven or end of use driven properties. The coating compositions include dielectrics material, metals, organic materials or organic-inorganic hybrid materials. The method steps of forming a layer of coating are straightforward and can be tailed to different purposes.

A personal protection system including a helmet worn on the head of a user and a hood removably coupled to the helmet. The helmet may comprise a ventilation assembly, a chin bar and a control circuit. The chin bar may comprise a mounting device and a hall effect sensor mounted adjacent the mounting device. The hall effect sensor may be in communication with the control circuit. The hood may comprise a transparent face shield and a mounting element configured to removably couple with the mounting device of the helmet. The control circuit may be configured to receive a signal from said hall effect sensor indicating the coupling of said mounting element of said hood with said mounting device of said helmet.

A barrier system, device, and method protects medical professionals and patients from exposure to contaminants and bodily fluids is provided. The system includes a head unit shaped to be worn over the head of the wearer; a hood positioned over the head unit; one or more sensors configured to produce one or more sensor-output signals; and a controller connected to the one or more sensors and configured to produce one or more controller-output signals based on the one or more sensor-output signals. Further, a device inside a barrier system is controlled by (a) sensing one or more characteristics; (b) producing one or more sensor signals based on the sensed one or more characteristics; (c) converting and/or processing the one or more sensor signals to produce one or more controller-output signals; and (d) controlling the device based on the one or more controller-output signals.

A protective apparel support system is disclosed comprising a support frame configured to rest on the shoulders of a wearer, the support having a first shoulder member, a second shoulder member and a shield engagement portion. A shield is selectively coupleable to the support and protective apparel is coupled to the shield.

A personal air filtering device comprising a rigid component comprising a transparent face shield, a fabric component, wherein the face shield and fabric combine to cover an entire head of a user and form a seal around the user's neck, an intake port with an inlet filter, an exhaust port with an exhaust filter, an air mover causing filtered air to enter the intake port from outside the device and exhaust air to exit the exhaust port, and a controller configured to adjust the rate at which the air mover moves air.

A device for filtering air for a user comprising a rigid component comprising, a transparent face shield that provides a space for air between an inside surface of the face shield and the user's face, an intake port, through which intake air enters the device, an exhaust port, through which exhaust air exits the device, a fabric component affixed to the rigid component that, combined with the rigid component, covers the user's head and seals around the user's neck, an intake filter that filters intake air passing through the intake port, an exhaust filter that filters exhaust air passing through the exhaust port, and an air mover assembly mounted on the rigid component that moves intake air through the intake port and exhaust air through the exhaust port, wherein the air mover assembly is mounted on the rigid component by vibration absorbing members, to thereby reduce transmission of the vibration of the air mover assembly to the rigid member, thereby reducing noise from the air mover assembly within the device.

A personal air filtering device for protecting a user from harm, the device comprising a rigid component comprising a transparent face shield, a fabric component, wherein the face shield and fabric combine to cover an entire head of a user and form a seal around the user's neck, an intake port with an inlet filter, an exhaust port with an exhaust filter, an air mover causing filtered air to enter the intake port and exhaust air to exit the exhaust port, one or more sensors, each configured to detect either an environmental condition or a condition of the user, and a processor configured to receive signals from the one or more sensors and execute a protective measure.

A hardhat with a protected overhead cooling fan comprises: a main hardhat body component having an upper aperture through which air is drawn and pulled down into a battery powered cooling fan; a fan cover component spaced at least about ¼ inch from and permanently adhered to the main hardhat body with a plurality of linear ridges; a battery pack for the cooling fan; and a plurality of connecting wires. A method of use is also disclosed.

A personal air filtration system comprising a rigid component, a flexible component, wherein the rigid component and the flexible component combine to cover at least a user's mouth and nostrils and form a seal therearound, an intake port with an inlet filter, an exhaust port, an air mover causing filtered air to enter the intake port and exhaust air to exit the exhaust port, and an app running on a user's smart device, wherein a smart app is configured to control and monitor operation of the system.