Can someone explain what are these animals ?

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Well, I did not know about these; found something from time stamp 2:00 at
---->
and with annoying narration ---->
Am happy learned something new today :oops:
 
An air amplifier and separator parts. You ain't going to be pumping scuba gas with either of them
 
Well, I did not know about these; found something from time stamp 2:00 at
---->
and with annoying narration ---->
Am happy learned something new today :oops:
These are meant to fill tiny little 0.5L air gun bottles. There's a 25 minute duty cycle so roughly 500 minutes (25 on-25 off) to fill an al80. There is also zero filtration - it's not breathing grade air.
 

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