Making your own soundproof generator enclosure may become an enjoyable and satisfying task. Most materials can be found easily at the community hardware shop or online. Here's a great list of materials which may be used plus some facts about these...

Power Pack Enclosures Used on the outside of a good soundproof shed
Is hard and durable
Could be layered
Could be painted to get a more decorative look
Once implemented, openings need to be caulked or metal tape used for efficacy
Medium Density Fiberboard (MDF)

Used for the walls of this enclosure
Preferred over plywood because it passes less sound
Some are resistant resistant
Some Kinds are flame retardant
Adaptive and can be shaped or curved
Cheap
Heavier than plywood
Emits potential carcinogens when cut
Closed Cell Foam Matting

Perfect for inner insulation
A powerful soundproof barrier by blocking and consuming noise
Water resistant unlike any open cell foam
Known to be mould resistant
Usually Fire-retardant
Light Weight
More durable and stronger than open cell memory
More dense and costs more than cells
Some expensive versions are a"peel and stick" design
Fiber Glass Insulation

Inexpensive, compared to closed cell mats
Moisture-resistant
Non-combustible, Non Flammable
Does not easily deteriorate
Effortlessly controls sound and temperature
Has to be closely packed for the maximum optimal sound barrier
Skin irritant
Acoustical Foam or Tile

Fire resistant
Efficiently absorbs noise
Some absorb water
Sound Proof Paint

Blocks moisture
Reduce vibrations and noise
Nontoxic
Requires several coats to be effective
Flame retardant
Maybe hard to Discover
Generator noise may be considered a big problem, especially in silent areas or campgrounds. These soundproofing materials would unquestionably be a fantastic advantage in reducing pollution.