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CPR Barrier DevicesFrom the Pocket Mask™ to the Laerdal™ Face Shield Laerdal has the CPR barrier device to meet your need.
Laerdal Pocket Mask™The Laerdal Pocket Mask is especially designed to be used by the professional rescuer and first responder. Read more › Laerdal Paediatric Pocket MaskChildren are not just little adults. They have unique features that require unique equipment. Read more › Laerdal® Face ShieldThe low-cost solution for CPR rescue breathing. Read more ›If you are not well-practiced, you should probably stick with a pocket mask or face shield. You CAN use a bag-valve-mask by yourself, but it requires skill.
Because it is difficult to use a bad valve mask for one person as you have to squeeze the valve and seal the mask, it is easiest to use a pocketmask and give manual breaths.
The bag-mask device is not recommended for a single rescuer to provide breaths during CPR.
It is called a BVM or bag valve mask that is not recommended for single person use.
I assume this is a test question. Shame, shame. :) Unless the rescuer is trained with proper equipment, simply provide compressions. Do not stop for breaths as it is more effective without them.
By holding and tipping the head back.
30 compressions to 2 vents, for a single person, lay rescuer.
Aaaa
No single answer. You must refer to the manufacturer's guide.
router
at a tim one device
i think yes it is a single user device
Phase to phase, two wire is classed as single phase. If the voltage from the phase to phase match the device's operating voltage, then connecting the device will allow it to operate.
There should be no reason to install two ground wires in the same conduit. Code requires that only a single path should be required if it is to carry a fault current. This ground wire should be single and continuous from the device back to the distribution panel. It is the fault current that is carried on the ground wire that trips the breaker or fault protection device. Don't confuse grounding wires with bonding wires.