Frequently Asked Questions (FAQ) About Felt Acoustic Panels

Below are the most common questions about felt acoustic panels, specifically tailored to European and American market needs, covering technical performance, installation, compliance, customization, and cooperation, with professional acoustic terminology integrated naturally.

Q1: What are felt acoustic panels, and how do they work?

A: Felt acoustic panels are a type of porous acoustic material made from high-density polyester felt (PET), designed to absorb sound waves and reduce noise pollution. They utilize fibrous absorption to trap sound energy, convert it into minimal thermal energy, and effectively reduce reverberation time (RT), echo, and airborne sound transmission. Unlike soundproofing materials that block sound, felt acoustic panels focus on sound absorption, improving acoustic comfort in indoor spaces.

Q2: What is the difference between NRC and STC ratings for felt acoustic panels?

A: Noise Reduction Coefficient (NRC) measures a panel’s ability to absorb sound (ranging from 0.0 to 1.0), indicating how much sound is absorbed when it hits the panel surface. Sound Transmission Class (STC) measures the panel’s ability to block sound transmission between spaces (higher STC means better sound blocking). For our felt panels, NRC ranges from 0.40 to 0.90, and STC is 30-35, suitable for most commercial and residential scenarios.

Q3: Are your felt acoustic panels compliant with European and American fire safety standards?

A: Yes. Our panels fully comply with European DIN EN 13501-1 (82% of variants reach B-S1, d0, the highest classification; 18% reach B-S2, d0) and North American ASTM E84-24 (Class A/Class 1), the top rating for interior wall and ceiling finishes. All variants are tested to ensure no toxic smoke or flaming droplets during combustion, safe for schools, hospitals, and public buildings.

Q4: Can felt acoustic panels be used in wet or high-humidity environments?

A: Our felt panels feature excellent moisture resistance and mold resistance, making them suitable for moderate humidity environments (e.g., hotels, gyms, and covered outdoor spaces). However, they are not recommended for long-term use in fully wet areas (e.g., bathrooms with direct water splashing). For such spaces, we can provide customized water-resistant felt panels with enhanced moisture barrier layers.

Q5: What materials are your felt acoustic panels made of, and are they eco-friendly?

A: Our panels are made from 60%+ recycled PET (polyethylene terephthalate) materials, reclaimed from plastic bottles, with recycled content verified by SCS Global Services. They are free from volatile organic compounds (VOCs), certified by OEKO-TEX® STANDARD 100 (Class IV), and qualify for LEED v4, BREEAM, and Well Building Challenge, aligning with global sustainability trends.

Q6: How to choose the right thickness of felt acoustic panels?

A: The thickness of felt acoustic panels directly affects acoustic performance: 10mm-20mm panels are suitable for light noise scenarios (e.g., home offices, bedrooms); 25mm-50mm panels are ideal for high-noise spaces (e.g., auditoriums, restaurants) with higher NRC and better reverberation control. We can recommend the optimal thickness based on your space size and noise level.

Q7: What installation methods are available for felt acoustic panels?

A: Common installation methods include: ① Direct mounting (adhesive or screws) on walls/ceilings; ② Suspension (using suspension cables as ceiling baffles or ceiling clouds); ③ Z-clip mounting (for easy disassembly and maintenance). We provide detailed installation instructions (with diagrams and videos) and technical guidance for free.

Q8: Can you provide custom designs for felt acoustic panels?

A: Absolutely. We offer full customization, including: ① Custom colors (over 72 standard colors, plus custom color matching); ② Custom shapes (rectangles, squares, circles, irregular designs); ③ Custom sizes (from 18"x18" to 54"x120", or custom dimensions); ④ Custom patterns/perforations (to optimize acoustic absorption and aesthetic design). Custom lead time is 10-15 working days.

Q9: What is the minimum order quantity (MOQ) and lead time?

A: MOQ for standard felt panels is 10 square meters; for custom orders, MOQ is flexible (contact our sales team for details). Lead time: 7-10 working days for standard products, 10-15 working days for custom products. Expedited production is available for urgent orders.

Q10: Do you provide samples, and how can I get them?

A: Yes. We offer free samples (up to 3 pieces) for quality and color verification; you only need to cover the shipping cost. Samples are sent within 3-5 working days, and we can provide samples of different thicknesses, colors, and designs to meet your testing needs.

Q11: How to maintain felt acoustic panels?

A: Maintenance is simple: ① Regularly clean with a vacuum cleaner to remove dust (avoid high-pressure vacuum to prevent damage to the felt surface); ② Wipe stains with a damp cloth (no harsh chemicals); ③ Avoid direct exposure to strong sunlight to prevent fading; ④ For severe stains, gently clean with a neutral detergent.

Q12: What is the service life of your felt acoustic panels?

A: Under normal use and proper maintenance, our felt acoustic panels have a service life of 8-10 years. They are wear-resistant, fade-resistant, and non-warping, ensuring long-term acoustic performance and aesthetic appearance.

Q13: Are felt acoustic panels suitable for open-plan offices?

A: Yes. Open-plan offices often have serious reverberation and speech interference issues. Our felt panels (especially 25mm-50mm thickness) can effectively reduce RT, improve speech intelligibility, and create separate acoustic zones without blocking the open space layout. They can be installed as wall panels, ceiling baffles, or partition panels.

Q14: Do your felt panels meet indoor air quality standards?

A: Yes. Our panels meet California’s CDPH standards and ANSI/BIFMA M7.1, with no harmful VOCs. They are certified by OEKO-TEX® STANDARD 100 (Class IV), ensuring they are safe for indoor use and do not affect indoor air quality.

Q15: Can felt acoustic panels be used with other acoustic materials?

A: Yes. Our felt panels can be used in combination with other acoustic materials (e.g., acoustic foam, soundproof curtains, bass traps) to achieve better overall acoustic effects. For example, using felt panels on walls + bass traps in corners can effectively absorb high, medium, and low-frequency sounds, optimizing the entire space’s acoustic performance.