Face mask efficiency FFP3 non-valved versus FFP3 valved

Infections
1

Hello everyone,

I hope everyone is keeping safe! I just have a very quick question as I am severely disabled and I will need to go into a hot coronavirus zone.

I have 3M FFP3 non-valved and 3M FFP3 valved.

I know FFP3 is the best you can pretty much get along with face shield. I am worried that the valve version will let coronavirus get through when I am inhaling.

Can anyone confirm if coronavirus can get through the valve?
Many thanks and kind regards Mike

2

don’t get having a valve , a hole in your mask that to me defeats the purpose. I find a good mask that you can tighten to your face. My even has a place to add a filter pad inside it.