I. Product Specifications & Price

Eco‑Friendly Sound‑Absorbing Cotton (Alias: Eco‑Friendly Polyester Fiber Sound‑Absorbing Cotton) Standard Size: 1.2m*6.0m*50mm, optional densities: 20K, 40K, 80K;
Corresponding prices: 20K at RMB 15 / sheet, 40K at RMB 30 / sheet, 80K at RMB 60 / sheet.
Made of green eco‑friendly polyester fiber, dust‑free and non‑irritating. It is a preferred sound‑absorbing filling material for residential and commercial cavity applications.

II. Performance & Advantages

1. Safe, Eco‑Friendly and Odor‑Free. Made of high‑quality polyester fiber raw material, free of glass fiber fly‑offs and pricking irritation. It ensures safer construction in enclosed indoor spaces and suits venues with high environmental‑protection requirements such as homes and schools.

2. Multiple Gradient Densities Available. Available in 20K, 40K and 80K. Low‑density grades for regular residential projects; high‑density versions for high‑noise environments such as KTV and live‑streaming rooms, with progressively improved sound‑absorbing performance.

3. Excellent Sound Absorption & Noise Reduction. 3D porous‑fiber structure efficiently dissipates medium‑and‑high frequency sound waves, reduces indoor reverberation and echo, and optimizes indoor acoustic conditions.

4. Easy Cutting & Processing. Soft texture allows free cutting and bending. Suitable for filling walls, ceilings, pipelines and irregular gaps for convenient on‑site installation.

5. Moisture‑Resistant & Anti‑Mildew. Non‑water‑absorbent, resistant to rot and pest infestation. It delivers long‑term stable performance with little property degradation even in basements and humid ground‑floor shops.

6. Compatible With Complete Acoustic Systems. Filled inside cavities of light‑steel keels. Combined with sound‑insulating panels, sound‑insulating felts and vibration‑isolating accessories to form complete sound‑insulation assemblies and enhance overall wall sound‑insulating performance.

III. Detailed Application Scenarios

Indoor Residential Scenarios

1. Household spaces: Sound‑absorbing cavity filling for home theaters, bedroom partition walls, ceiling voids, studies and basements. Eco‑safe for living spaces of the elderly and children.

Commercial Entertainment Venues

2. Commercial KTV, chess rooms, escape rooms, recording studios and live‑streaming rooms: cavity filling for walls and ceilings to reduce sound leakage between rooms and meet acoustic noise‑reduction requirements for commercial premises.

Office & Public Buildings

3. Cavity filling for partitions and ceilings in office buildings, offices and meeting rooms to mitigate ambient noise, eliminate speech echo and improve office privacy.

4. Educational facilities: Sound‑absorbing filling for classrooms, piano rooms and lecture halls, improving indoor acoustic environment and complying with campus indoor environmental standards.

Industrial & Equipment Noise‑Reduction Scenarios

5. Cavity filling for equipment rooms and fan‑pump rooms to absorb operating noise and lower mechanical clatter.

Cultural‑Tourism & Other Scenarios

6. Indoor sound‑insulation renovation for hotel guest rooms, homestays, hospitals and exhibition halls, balancing noise‑reduction performance and healthy indoor environment.

Note: Eco‑friendly polyester fiber sound‑absorbing cotton mainly serves for sound absorption and noise reduction. It has limited sound‑insulating capacity when used alone. Desired sound‑insulation results can only be achieved by full‑set installation with sound‑insulating panels and keel systems.

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