A composite multi-axial impact protection liner for a helmet is provided that reduces rotational acceleration, rotational strain rate, and rotational strain that cause concussions. In a protective helmet so equipped, one or more layers of fluid polymer, including strain thinning and strain thickening polymers, are positioned between the wearer's head and a hard helmet shell. The liner offers greater injury protection, performance, and personal comfort using the rate dependent and combined effect of strain thinning and strain thickening of fluid polymer layers.

Disclosed example respirators comprise: a filter configured to filter the air; a blower fan configured to provide continuous air flow at variable speeds; an air duct configured to direct air from the blower fan to an exhaust location, the blower fan configured to blow air through the air duct; and a blower controller configured to: control the blower fan to automatically adjust an airflow speed of the blower fan to a plurality of airflow speeds over a plurality of different time periods, the plurality of airflow speeds being within an airflow speed range.

Disclosed example respirators comprise: a filter configured to filter the air; a blower fan configured to provide continuous air flow at variable speeds; an air duct configured to direct air from the blower fan to an exhaust location, the blower fan configured to blow air through the air duct; and a blower controller configured to: control the blower fan to automatically adjust an airflow speed of the blower fan to a plurality of airflow speeds over a plurality of different time periods, the plurality of airflow speeds being within an airflow speed range.

A flame resistant shirt includes an outer layer that has a main body portion and a pair of sleeves. The main body portion terminates in a bottom edge. The flame resistant shirt also includes an inner curtain that is coupled to an inner surface of the main body portion and has a top edge and an opposing bottom edge. The top edge of the inner curtain is located at a waist region of the main body portion and the inner curtain extends downwardly therefrom and the bottom edge of the inner curtain is disposed above the bottom edge of the main body portion. The inner curtain is intended to be tucked into a bottom garment, while the outer layer is intended to be worn untucked.

Aspects herein relate to a garment having zoned insulation features. The zoned insulation features comprise projections that extend in the z-direction with respect to the surface of a base material forming the garment such that the projections face toward a body surface of a wearer when the garment is worn. The number and/or size of the projections may vary over the garment depending on the amount of insulation needed in different areas of the garment.

The invention relates to a low pressure drop personal protection device for providing protection against a range of toxic industrial chemicals and chemical warfare agents and capable of being worn by a wide range of users. The device comprises: a flexible polymeric hood in which the polymer is selected to be impermeable to the toxic challenge molecules; a neck seal for sealing the hood about the neck;a half mask for providing connection for a canister; and a low pressure drop canister system for providing chemical protection. The canister may comprise a resiliently flexible, closed cell foam and monolithic activated carbons, the foam having holes slightly smaller than the size of the monoliths so that flow through the canister is through the monoliths. The monoliths may be the result of partially curing a phenolic resin to a solid, comminuting the partially cured resin, extruding the comminuted resin, sintering the extruded resin so as to produce a form-stable sintered product and carbonising and activating configurable the form-stable sintered product. They may be between 5 and 40 mm diameter, preferably 15 to 30 mm and 1-3 cm in length. Each monolith may have a square channel structure wherein the channel size is 100-2000μ and the wall thickness may be 100-2000 μm with an open area of between about 30 and 60%. It may have a surface area of at least 700 m2/g, may be activated to >30 wt % weight loss and may be impregnated with materials selected from metallic additives and triethylene diamine according to the anticipated challenge.

A head protection system includes a safety helmet and a fire protection cloth. The safety helmet includes a helmet shell (105) and a holding device (108) to guarantee a distance (A) between a helmet shell inner side (106) and the user head (102). An air path (110) is formed by a plurality of openings (120) of a fastening ring (125) and the distance between the inner side of the helmet shell and the head of the user. The fastening ring is arranged at least in an area of the user forehead of the user. The fire protection cloth has a fastening strap (230) with rigid fastening elements (235) configured to mesh with an opening of the fastening ring to detachably fasten the fire protection cloth to the safety helmet. The rigid fastening elements fill the plurality of openings in the fastened state to close the air path.

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.

The present invention provides a protective clothing having high dust proof property which prevents powder dust from entering into the clothing and having high air permeability for comfortable work, in which the temperature does not rise easily even in summer. A dust-proof clothing using the following dust-proof material, wherein i) the dust-proof material has a fiber layer and an electret nonwoven fabric layer, and a total number of the fiber layer and the electret nonwoven fabric layer is 2 or more; and ii) in the dust-proof material, the fiber layer and the electret nonwoven fabric layer, which are adjacent to each other, are adhered on a region having an area ratio of 5% or more and 10% or less.

A personal protective device (PPE) including a face cover assembly and a bodysuit configured to be worn by a human user. The device protects users against airborne aerosol particles containing viruses or other infectious agents while enabling improved flexibility relative to prior art designs. The device includes a helmet-like” rotating face cover assembly that fits over the user's head and attaches to a collar on the biohazard bodysuit. This rotating face cover assembly has a plurality of different mask sides, each with differing geometries or other properties. The device enables a user to can rotate the cover and select a given mask side that best meets that user's needs. The different mask sides can accommodate different facial geometries, eyewear types, and use cases.