That helmet has no join to the pressure suit so provides no protection, I hope Benjamin knows what he's doing.
(
brb welcome to my reed organ repair blog, Fri 24 Jul 2020, 16:48,
Reply)
From the way he turned the oscillator off before he started playing
(vide about 1:50), I think probably not.
(, Fri 24 Jul 2020, 21:31, Reply)