Wonder if anyone has any input the Matala vs the Gast?

Small pond so the
1/5 HP Matala Rotary Vane Air Compressor
or the
1/4 HP Gast Rotary Vane would do great.

Just trying to see if anyone has real world applications. Greatest concern is the decibel level. I'm going to make an aircrete vented box to conceal as much/if not all of the sound as I can.

Thanks