EFR: First Aid At Work Annual Refresh Course Twin Outlet Valves AP Diving Self Sealing SMB

AP Diving Self Sealing SMB Surface Marker Buoy (SMBC) is inflated by simply purging a second stage in the open end when underwater

100m depth rating

The Second Stage

sealed seams to minimise water ingress

EFR: First Aid At Work Annual Refresh Course Twin Outlet Valves AP Diving Self Sealing SMBFirst Aid At Work Annual Refresh Course Overview of the First Aid at Work Annual Refresh Course Skills get rusty if not practised and as such we strongly recommend that you keep practising. This highly practical First Aid Annual Update course is designed as an intermediate refresher course within the period of your current certification, be that a two or three year certification. This course recaps some of the core skills you learnt in your main first