In some examples, a system includes an article of personal protective equipment (PPE) comprising one or more sensors, the one or more sensors configured to generate usage data that is indicative of an operation of the article of PPE; and at least one computing device comprising a memory and one or more computer processors that: receive the usage data that is indicative of the operation of the article of PPE; apply the usage data to a safety learning model that predicts a likelihood of an occurrence of a safety event associated with the article of PPE based at least in part on previously generated usage data that corresponds to the safety event; and perform, based at least in part on predicting the likelihood of the occurrence of the safety event, at least one operation.

In some examples, a system includes an article of personal protective equipment (PPE) comprising one or more sensors, the one or more sensors configured to generate usage data that is indicative of an operation of the article of PPE; and at least one computing device comprising a memory and one or more computer processors that: receive the usage data that is indicative of the operation of the article of PPE; apply the usage data to a safety learning model that predicts a likelihood of an occurrence of a safety event associated with the article of PPE based at least in part on previously generated usage data that corresponds to the safety event; and perform, based at least in part on predicting the likelihood of the occurrence of the safety event, at least one operation.

An adapter for laboratory cell strainer is disclosed. The adapter includes a unitary structure having an annular top surface, an annular bottom surface, a smooth inner surface, an outer surface, and an opening extending therethrough. The adapter has a downwardly and radially inwardly sloped funnel section terminating in a cylindrical edge at the annular bottom surface with a lower section of the funnel section having a narrowed, tapered diameter. The outer surface of a middle section of the funnel section has an annular neck configured therearound with a plurality of radially protruding ribs. The unitary structure is configured for connection to the laboratory cell strainer at the annular top surface and placement inside a various sized laboratory tube for receiving filtered liquid during use.

A protective respirator that deactivates pathogens in a kill zone in front of a mouth and nose of a user by emitting Far UV-C radiation (e.g., having a wavelength centered around 222 nanometers). In some embodiments, a controller uses a mathematical model to determine a required intensity or emission time to provide a threshold probability of killing a microbe (e.g., a virus such as SARS-CoV-2). The required intensity or time may be determined based on atmospheric conditions and/or physiological conditions of the user. The Far UV-C radiation may be emitted in a direction through the kill zone that does not intersect with the skin or eyes of the user (e.g., away from the user or across the front of the user's face). Alternatively, the controller may estimate the fluence of Far UV-C radiation at the skin or eyes of the user over time and adjust the Far UV-C radiation emitted.

A protective respirator that deactivates pathogens in a kill zone in front of a mouth and nose of a user by emitting Far UV-C radiation (e.g., having a wavelength centered around 222 nanometers). In some embodiments, a controller uses a mathematical model to determine a required intensity or emission time to provide a threshold probability of killing a microbe (e.g., a virus such as SARS-CoV-2). The required intensity or time may be determined based on atmospheric conditions and/or physiological conditions of the user. The Far UV-C radiation may be emitted in a direction through the kill zone that does not intersect with the skin or eyes of the user (e.g., away from the user or across the front of the user's face). Alternatively, the controller may estimate the fluence of Far UV-C radiation at the skin or eyes of the user over time and adjust the Far UV-C radiation emitted.

A rescue tube comprising a tube having a first and second end, a one-way valve and a ported double swivel elbow; wherein the one-way valve and ported double swivel elbow are connected to one another, and the one-way valve is attached to the tube.

A rescue tube comprising a tube having a first and second end, a one-way valve and a ported double swivel elbow; wherein the one-way valve and ported double swivel elbow are connected to one another, and the one-way valve is attached to the tube.

The present disclosure provides a self-contained breathing apparatus having a face piece vision system. In one aspect, the vision system includes a display component having an active matrix display device and a transparent heads-up display configured to be aligned with an eye of a user wearing the self-contained breathing device, and an infrared sensor component having an infrared lens assembly and an infrared image sensor for capturing an infrared image of a potential heat source that is projected to the transparent heads-up display.

A breathing gas delivery system comprising a gas flow controller and at least one breathing apparatus. The gas flow controller has a body having an on/off switch, at least one gas input, and at least one gas output. The breathing apparatus comprises a T-shaped gas input having a body with two arms and a free end, a breathing bag coupled to the free end of the T-shaped gas input, a length of tubing having two opposed ends, wherein one end is coupled to the other arm of the T-shaped gas input, a filter coupled the length of tubing, and a nasal assembly coupled to the filter.

Disclosed are methods and a safety system of a structure for automatic switching between sources of breathable air within the safety system in accordance with air parameter based automatic purging of a compromised form thereof. The safety system has a fixed piping system installed within the structure for supply of the breathable air from a source across the safety system. In response to an alert signal indicative of a sensed parameter of the breathable air being outside a predetermined threshold value, a breathable air purging system within the safety system automatically purges the safety system of the breathable air, and a bypass controller device automatically switches to another source of the breathable air to ensure a continued supply of the breathable air via the fixed piping system of the safety system.