fog

[FFMDiver]

Hello:

I recently reversed the jetstream on my Poseidon FFM and it fogged up. I could barely read my computer. While switching the reg to the other side, I noticed a small baffel plate. It was slightly off center. Apparently it directs air up towards the lens. The other hole goes to the mouth. Seems like the hole for shield air is larger and actually directs more air to defog the mask. Could make sense if the situation is reversed and less air is directed up to the lens.Hence why it fogged? Anyone concur with this opinion??

 

[mntdiver]

The mask was designed so that almost all of the gas is first passed over the lense and then inhaled through the two one way valves in the oral nasal. This does two things, it defogs the lense and creates a one way travel of gas, thus reducing CO2 buildup.