On Manual Inflatable Life jackets, do I have to blow it up by mouth?

In an emergency, you do not have to blow up a manual PFD by mouth. A manual PFD uses a high-pressure CO2 cylinder to provide near-instant buoyancy, but it requires a physical action from you to start the process.

1. The Primary Method: The "Jerk to Inflate" Handle

To inflate the vest, you must firmly pull the toggle located at the bottom of the device.

• The Result: This action pierces the CO2 cylinder, and the bladder will fully inflate in roughly 3 to 5 seconds.

• The Benefit: Manual PFDs are the preferred choice for activities where you expect to get wet (like kayaking, paddleboarding, or wading) because they won't accidentally inflate if you get splashed or take a deliberate swim.

2. The Backup Method: The Oral Inflation Tube

Every inflatable PFD is equipped with a backup oral inflation tube, typically located on the shoulder. You would use this if:

• The CO2 cylinder fails to fire (as a secondary backup).

• You need to "top up" the pressure after being in the water for several hours.

• You are practicing in a pool and want to save your CO2 cylinder for a real emergency.