Odor-Sound Absorbing Prototype

I want to see a single working concept that tackles odor and sound at the same time, whether it ends up as a slim wearable patch, a discreet seat cushion, or both. Equal performance on smell control and noise dampening is the headline goal; keeping the user comfortable comes right after that.

What I have in mind is a simple layered build that combines acoustic foam for noise, activated carbon for rapid odor capture (ideally reacting within a few seconds), and a breathable outer textile that feels pleasant against skin or clothing. The whole assembly has to be safe, low-cost, and easy to source from everyday suppliers.

Here is what I need at hand-off:

• Functional prototype – wearable, seat, or a convertible design that shows the concept works
• Complete bill of materials with suppliers or equivalent substitutions
• Step-by-step build guide clear enough for a DIY hobbyist to follow
• Basic proof of performance – photos or a short video demonstrating odor removal speed and measurable sound reduction

Timeline is 5-10 days from kickoff, and the budget is open for discussion once you outline your solution. When you reply, include any similar filtration or acoustic projects you have built plus a quick sketch of your proposed layer stack so I know you understand the constraints.