Oneida Dust Gorilla Silencer Test

Oneida Air Systems recently introduced a new style of silencer as an upgrade for their Dust Gorilla cyclones (https://www.oneida-air.com/inventoryD.asp?Item_No=BSS181600&CatId=%7b53E0589A-1F29-43B8-A312-4D6E6324DF13%7d). Here I install it and measure the before and after sound levels for comparison. Spoiler alert: MAJOR NOISE REDUCTION!