Acoustic Panel - 16 x 12 x 0.5 Inches 6 Pack Dense Thick Soundproofing and Sound Absorbing Panel, Wall and Ceiling Acoustical Treatment Felt Tiles for Recording Studio, Home

These panels do not have a noticeable odour. I mounted the large tiles to the walls of my music studio with large black command strip picture hangers for easy removal when the time comes. I used medium command strips for the smaller panels. I just pressed the strip pairs in each corner and positioned them on the walls. They have been hanging for weeks without issue - easy peasy. Alien tape would be a cheaper option but it is harder to remove without damaging the walls in my experience. I think these panels look much nicer than the egg carton and waffle foam panels although they are considerably more expensive. They have removed unwanted echo from my sound room. The provided dimensions are accurate and the colour was consistent across the packs of large and smaller charcoal panels that I purchased. I am very satisfied with this product.

Since I'm a musician, I soundproofed my room with those, and they are very dense and block the sound out very well. They are also great for sound treatment.

I used these to deaden the sound of my hammering in my jewelry studio. My studio was converted from a plant are on an apartment patio and had open slatted top counters, which I covered with a thin plywood. I wanted to make sure my hobby wouldn’t disturb the neighbors, so I cut these boards to size to fit under the plywood. They work perfectly and absorb the thuds from my hammer! Not their intended purpose, but they are good quality and worked well for my needs.

My indoor plant lite has a timer that has gotten old and noisy. I made a hood from this felt. It did the trick. My daughters also used pieces as underlays for their sewing, quilting machines. They report the felt quiets those machines as well

Not exactly cheap but they do the job