Structural PPE (10)
Firefighting Helmet
Ear protection
Eye protection
Face piece
Flash hood
Bunker Jacket
Bunker Pants
Firefighting Boots
Firefighting Gloves
SCBA
Helmet colors
Black w yellow: firefighter
Red w yellow: officer
White w yellow: Chief
Bunker coat layers
Outer shell: flame resistant durable material.
Moisture barrier: breathable membrane protecting from water, chemicals and virals.
Thermal layer: maximizes thermal protection.
Bunker coat and pant features
Wristlets w thumb loops
Front closure system: clasp/zipper with Velcro flap.
Collar
Reflective trim
Drag rescue device
Reinforced knees
Suspenders
Eye protection
Primary: safety glasses, face piece
Secondary: pull down face shield
Hearing protection.
And noise exposure locations
Fire station activity.
Responding to calls.
At emergency scene.
Types of breathing apparatus used by EFRS
Open circuit system: air supplies via cylinder and exhaled is centred into atmosphere.
Supplied air (saba): air supplies to SCBA via guide connected to air cart (ladder truck ebss)
SCBA 4 parts
Cylinder
Harness
Regulatory
Face piece
Cylinders pressures and times
4500psi full, rated 60 mins
3600si change
300-400psi differential is damaged.
Fischer at 1500psi
Hydrostatically tested 5 years, replaced after 15 years.
SCBA harness parts
Frame, universal air connection (ric), high pressure hose, reducer, regulator,
Pressure Reducer numbers and regulator
Reduces to 85-110psi, then down to 0.8 to 1.5psi
What does a change in color to the harness Kevlar mean
Exposure to high heat, but it’s not damaged unless it is brittle.
PASS, alarm times, controls
Personal Alert Safety System.
Low alarm @20sec
High alarm @30sec
Red alarm button
Yellow reset button
Indicator light bar
Pressure difference between chest gauge and bottle to tag out of service
300-400psi
Pressure vibralert triggers
1500psi, 1/3rd bottle
What is the purge valve on the regulator used for (2)
Clearing face piece of fog.
In case of regulator malfunction, open purge to bypass regulator and immediately exit.
SCBA facepiece parts
Kevlar head harness
D rings
Clear face lense
Nose cone
Voice mitter diaphragm
Voice amp adapter
How long until voice amp shit down without activity
20 minutes
PASS Operation
Automatically activated when main air valve opened. Gauge bar flashes green.
After 20 seconds, prealarm.
After 30 seconds, ramp up chirp to high alarm.
Can be manually activated via red button.
At full alarm, reset done by pressing yellow twice.
Deactivate by turn air off, bleeding, click yellow twice
Check battery by press and hold yellow.
SCBA limitations
Limitations of the wearer
Limitation of air supply
Limitations of equipment
Other respiratory protection
P95 - Dusty or aerosol environment.
4 Respiratory hazards
High temperatures
O2 deficiency (less than 19.5-21%)
Toxins
Smoke
Products of combustion
Irritants: SO2, NO2
Asphyxiants: CO2, CO
Toxins: H2S, HCN