A protective face mask has a face shield arranged to fully span a face area of the user while being secured relative to a protective helmet worn by the user. The face mask has a central viewing portion formed of a transparent material that is rigid so as to resist deformation when impacted. One or more breathing openings are formed in the face shield so as to be arranged to receive breathing air when inhaling and/or exhaling. A control structure is supported on the face shield in operative association with each breathing opening in non-interference with the central viewing portion of the face shield in which the control structure is one of (i) a filter member spanning across the breathing opening, or (ii) a valve member operable between open and closed positions so as to only allow flow through the breathing opening in one direction.

A ventilated helmet is provided. The helmet includes a shell defining a cavity, the shell having a front section provided with an opening to allow the wearer to see. The helmet also includes a transparent shield adapted having an inner surface and being adapted to substantially close the opening. Finally, the helmet includes a ventilation system having an evacuation subsystem adapted to create an evacuation airflow to evacuate humid air within the cavity to a surrounding environment. The ventilation system further has a pressurizing subsystem adapted to admit a pressurizing airflow within the cavity to create a high-pressure zone and a low-pressure zone within the cavity, wherein when in use, the wearer exhales air within the low-pressure zone, and wherein the high-pressure zone prevents air within the cavity from travelling from the low-pressure zone to the high-pressure zone. A method of evacuating humid air from the cavity is also provided.

A respirator has a shell that defines a breathable air zone for a user wearing the respirator. An air flow control system for the respirator has an air delivery conduit within the shell of the respirator, a valve member moveable relative to the air delivery conduit and within the shell to vary the amount of air flow through the air delivery conduit, and a valve actuator outside of the shell of the respirator. The valve actuator is manipulatable by a user of the respirator while wearing the respirator to control movement of the valve member.

According to an embodiment, there is provided an extended reality (XR) system based on multimodal interfaces including a computer configured to broadcast output data including at least one device identifier (ID), at least one time limit, and at least one reproduction data to at least one extended reality output device, and at least one extended reality output device configured to receive the output data and reproduces only reproduction data corresponding to itself within the time limit based on the at least one device identifier (ID). According to this, a user can experience reproduction of five senses with a sense of reality without interruption.

The inventive Invisible Face Mask apparatus comprises a headgear or headwear such as a cap, helmet, strap or a visor, which is equipped with an air purifying mechanism, such as an air filter, that filters ambient air, and an air blower which generates an airflow pushing the purified air in a downward direction in front of and adjacent to the user's face.

Protective equipment comprising: a shock-absorbing liner, the shock absorbing liner comprising one or more cavities; and a fitting liner for mounting the equipment to a wearer, said fitting liner arranged between the wearer and the shock-absorbing liner and configured to move relative to the shock-absorbing liner during an impact; an attachment means attaching the fitting liner to the rest of the helmet, the attachment means being attached to the rest of the helmet within one of the cavities of the shock absorbing liner.

Protective equipment comprising: a shock-absorbing liner, the shock absorbing liner comprising one or more cavities; and a fitting liner for mounting the equipment to a wearer, said fitting liner arranged between the wearer and the shock-absorbing liner and configured to move relative to the shock-absorbing liner during an impact; an attachment means attaching the fitting liner to the rest of the helmet, the attachment means being attached to the rest of the helmet within one of the cavities of the shock absorbing liner.

A helmet, in particular to a bicycle helmet, having a plurality of ventilation openings and at least one evaporation cooler that is arranged in a ventilation opening.

A personal protection system including a helmet worn on the head of a user and a hood removably coupled to the helmet. The hood may comprise a shell, a transparent face shield, and a mounting element configured to removably couple the hood to the helmet. The transparent shield may comprise a first lens and a second lens. The first lens may be coupled to the shell, and the second lens may be coupled to the first lens. The second lens may be coupled to the first lens by one of an adhesive, heat staking or ultra-sonic welding. The hood may also comprise a mounting element configured to center the transparent face shield relative to a light assembly coupled to the helmet such that the light emitted from the light assembly passes through a u-shaped opening or slot defined by the second lens.

A surgical helmet assembly (30) to be worn by a user during surgical operations. The surgical helmet assembly includes a frame assembly (40) having a helmet shell (42) to be worn over the user's head. A fan (44) is coupled to the helmet shell to circulate air around the helmet shell. A headband assembly (78) is coupled to the helmet shell to secure the surgical helmet assembly to the head of the user. The surgical helmet assembly further includes an adjustment assembly (100) to adjust a sagittal fit of the helmet shell and the headband assembly to the head of the user while keeping a center of mass of the frame assembly in close proximity to the head of the user. The surgical helmet assembly further includes another adjustment assembly (118) concentric to the first adjustment assembly to adjust a circumferential fit of the headband assembly to the head of the user.