A hat or other article of apparel worn on the head having a brim which includes a transparent, impermeable veil hanging down from the brim on all sides such that the veil surrounds the head, face, neck and upper shoulder region of the wearer. As such, the present invention may prevent the spread of any droplets between inside and outside of the veil's covered area, instead causing droplets to drop down to the ground.

The present disclosure relates to an anti-droplet mask filter and an anti-droplet mask comprising the same, and more particularly, to a hydrophobic filter having ridges and an anti-droplet mask comprising the same. The present disclosure is directed to providing a mask filter with improved water repellency performance for effectively preventing the spread of acute respiratory syndrome virus infections.

The super water-repellent anti-droplet nonwoven filter of the present disclosure shows superhydrophobicity with the surface contact angle of 160° or more due to the ridges that form a nanopatterned structure on the surface of hydrophobic fibers and the surface of bonding portions, thereby preventing the adsorption of droplets onto the surface of the filter. Additionally, the super water-repellent anti-droplet nonwoven filter of the present disclosure can capture ultrafine particles such as aerosols due to the nanopatterned structure on the surface of the super water-repellent anti-droplet nonwoven filter.

The present disclosure relates to an anti-droplet mask filter and an anti-droplet mask comprising the same, and more particularly, to a hydrophobic filter having ridges and an anti-droplet mask comprising the same. The present disclosure is directed to providing a mask filter with improved water repellency performance for effectively preventing the spread of acute respiratory syndrome virus infections.

The super water-repellent anti-droplet nonwoven filter of the present disclosure shows superhydrophobicity with the surface contact angle of 160° or more due to the ridges that form a nanopatterned structure on the surface of hydrophobic fibers and the surface of bonding portions, thereby preventing the adsorption of droplets onto the surface of the filter. Additionally, the super water-repellent anti-droplet nonwoven filter of the present disclosure can capture ultrafine particles such as aerosols due to the nanopatterned structure on the surface of the super water-repellent anti-droplet nonwoven filter.

A face mask including shape memory materials to improve fit to the face and/or create a cavity in front of the mouth to facilitate breathing.

A face mask including shape memory materials to improve fit to the face and/or create a cavity in front of the mouth to facilitate breathing.

A photosensitizer formulation can be disposed on or in a mesh; net; netting; screen; curtain of strands, fibers, or monofilaments; substrate, personal protective gear, mask, or any other suitable object. The photosensitizer formulation, when in contact with molecular oxygen and activated by light or ultrasound, produces microbicidal singlet oxygen. A variety of different arrangements and applications are described. For example, an air flow device may also be included to generate a flow of air through or over the photosensitizer formulation. A fluorescent formulation may be included to monitor photobleaching. The photosensitizer formulation may be disposed in a concentration gradient to generate antigenic particles by damaging or destroying microbes.

Embodiments described herein provide systems and methods for protecting doctors and others from pathogenic microorganisms aerosolized during surgical and other procedures on patients. The systems and methods generally operate by forming a partially-enclosed chamber around the patient's face during the procedure. A facial adapter and facial shield isolate a portion of the patient's face from the surrounding environment. The partially-enclosed chamber is connected to a vacuum source that brings the pathogenic particles through a filter, which further decreases the number of pathogenic particles expelled into the environment.

Embodiments described herein provide systems and methods for protecting doctors and others from pathogenic microorganisms aerosolized during surgical and other procedures on patients. The systems and methods generally operate by forming a partially-enclosed chamber around the patient's face during the procedure. A facial adapter and facial shield isolate a portion of the patient's face from the surrounding environment. The partially-enclosed chamber is connected to a vacuum source that brings the pathogenic particles through a filter, which further decreases the number of pathogenic particles expelled into the environment.

An apparatus with multipurpose pressure sensitive materials, includes an outer part and a pressure sensitive material. The sensitive material is configured to change colors according to contact state between the outer part with an object and/or according to the outer part itself.

A ducted breathing apparatus and methods for assembling and using such ducted breathing apparatus are provided. The ducted breathing apparatus may include a face cover for sealing at least a portion of a user's face. The ducted breathing apparatus may include a ducted air channel element for providing direct air flow from a user's mouth within the mask to the outside environment. The ducted breathing apparatus may include a coupling element for providing a sealed mating connection between the ducted air channel element and the face cover.