Firefighting self-contained breathing

Firefighting Self-contained breathing apparatus with full facepiece in positive-pressure mode. 

Potassium superoxide is used in self-contained breathing devices for firefighters and miners. It reacts with the moisture in exhaled air to generate oxygen ... 

A self-contained breathing apparatus contains 248 g of potassium superoxide. A firefighter exhales 116 L of air at 37°C and 748 mm 1%. The volume percent of water in exhaled air is 6.2. What mass of potassium superoxide is left after the water in the exhaled air reacts with it ... 

Cesium reacts with oxygen to produce a superoxide, Cs02, which reacts with CO, to produce oxygen and Cs,CO,. This reaction is used in a self-contained breathing apparatus for firefighters. What volume of oxygen (in liters at 298 K and 1.00 atm) is produced from 30.0 g of CsO, with an excess of CO, ... 

Caution Contact with arsine vapor can be fatal. Do not breathe the fumes If inhalation is a possibility, hold breath until respiratory mask is donned. Firefighters should wear full protective clothing and respiratory protection during both fire-fighting and rescue (positive pressure, full face, NIOSH-approved self-contained breathing apparatus/SCBA shall be worn). 

Respiratory protection is required. Positive pressure, full facepiece, NIOSH-approved self-contained breathing apparatus (SCBA) will be worn where there is danger of oxygen deficiency and when directed by the fire chief or chemical accident/incident (CAI) operations officer. In cases where firefighters are responding to a chemical accident/incident for rescue/reconnaissance purposes vice firefighting, they will wear appropriate levels of protective clothing (see Section 8). 

The foremost duty of a firefighter is exactly what the job title says—to fight fires. Whether a fire breaks out at a two-story home, a 700-room hotel, or a 10,000-acre farm, the next sound you will hear is the familiar wail of those massive red trucks barreling their way to the scene, loaded with firefighters in protective equipment, helmets, and self-contained breathing apparatus. 

Firefighters are required to check the air supply on their self-contained breathing apparatus (SCBA) each day. If there is any reduction in pressure, the firefighter should change the air tank and replace it with a hill tank. The main reason firefighters should have full air tanks is that... 

Remember, you are being interviewed by professionals for a professional position. Ensure that you are neatly dressed and well groomed. Be sure to wear a suit or other business attire without a lot of jewelry or other distractions. Another thing to keep in mind is the requirement for all firefighters to get a face seal when wearing self-contained breathing apparatus. That means male applicants should be clean shaven for all interviews. 

The location, type, and availability of equipment should be on-site from local resources or elsewhere. They should meet specific types of emergencies and be able to bring situations under control. These may include firefighting equipment, emergency medical, communication equipment, and self-contained breathing apparatus. 

Flammable properties of fipronil product (e.g., Term-idor SC Termiticide) flash point >93°C (199°F) flammability class will burn. Closed containers may explode (due to the build-up of pressure) when exposed to extreme heat. Suitable extinguishing media include water spray, foam, CO2, and dry chemical media. Firefighters should be equipped with self-contained breathing apparatus and turnout gear. 

Assume that agents pose both a severe respiratory and severe contact hazard. Wear appropriate fully encapsulating protective gear with positive pressure self-contained breathing apparatus (SCBA). Structural firefighters protective clothing is recommended for fire situations only it is not effective in spill or release events. 

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