Review on 🧹 CRAFTSMAN CMXZVBE38660 2-1/2 inch Muffler Diffuser for Wet/Dry Vac Attachment, Black - Ideal for Shop Vacuums by Bob Boan

This is just to plug the exhaust hole. Will it make the vacuum cleaner quieter, yes, a little, but not much. The engine is louder and it will not change. This is to spread out the exhaust so it doesn't blow all over the place. For this purpose it works great. I am very satisfied with this product. If you're buying this for quieter operation, you'll likely be disappointed. However, if you buy one so the exhaust doesn't carry dirt while you work, you'll be happy and also get the benefit of making the car a few decibels quieter.