Sound absorber for ventilation ducts - SilentDirect Air, 40 cm wide
- Sold by the meter
- Easy to customize and clean
- 40 cm wide and approximately 20 mm thick
Read more
- Free shipping
- 5-year warranty
- Fast delivery
Recommended accessories
SilentDirect Air – Effective Sound Absorption for Ventilation Ducts
SilentDirect Air is a specially developed sound absorber for ventilation ducts that effectively reduces sound transmission between rooms. The product is designed to improve the acoustic environment in everything from homes and offices to industrial and public buildings where ventilation systems can otherwise spread disruptive noise. With proper installation, a quieter, more controlled, and comfortable indoor environment is created.
Reduces sound transmission in ventilation systems
Sound often travels unimpeded through ventilation ducts and can cause disturbances between different rooms. SilentDirect Air acts as a sound absorber within the duct, breaking up sound waves before they propagate further. This reduces both direct sound transmission and unwanted reflections, improving both comfort and speech intelligibility in adjacent spaces.
Materials and Construction
SilentDirect Air is made of 100% polyester, at least 50% of which consists of recycled material. The open fiber structure allows sound waves to be effectively absorbed rather than reflected further into the duct system. The material is lightweight, flexible, and moldable, making it easy to adapt to various ventilation solutions without negatively affecting airflow when installed correctly.
Easy adaptation to different duct sizes
The product is supplied in 40 cm widths and sold by the meter, providing great flexibility during installation. SilentDirect Air can be easily cut with standard scissors to fit ventilation ducts in sizes such as Ø80, Ø100, Ø125, Ø160, and Ø200. Its low weight and pliable structure allow the material to be quickly shaped and installed even in tight spaces.
Easy installation and maintenance
Installation is simple and requires no special tools. The material is placed directly in the ventilation duct, where it sits securely without the need for advanced fastening. If necessary, SilentDirect Air can be easily removed for cleaning. It can be vacuumed on low power, shaken out, or rinsed in lukewarm water. The product dries quickly and retains its sound-absorbing properties over time.
Healthy and safe material selection
SilentDirect Air is designed to be safe for use in all types of indoor environments. The material is odorless, mold-resistant, and does not rot. It emits no harmful substances and does not release harmful fibers, making it suitable even for sensitive environments such as homes, offices, schools, and healthcare facilities.
Applications
SilentDirect Air is used in a variety of environments where ventilation noise is a problem. In homes, it reduces sound transmitted between rooms via the ventilation system. In offices, it contributes to a quieter work environment by reducing disruptive noise from ventilation systems. In industrial and warehouse settings, it improves the work environment by lowering the overall noise level. In public buildings such as schools and hospitals, it contributes to better acoustics and increased comfort for both staff and visitors.
Why customers choose SilentDirect Air
SilentDirect Air is a simple yet highly effective solution for reducing sound transmission through ventilation systems. The combination of high sound absorption, easy installation and maintenance, and a safe and sustainable material makes it the obvious choice for those who want to improve the acoustic environment without extensive modifications. The product delivers an immediately noticeable effect and contributes to a quieter and more pleasant indoor environment.
| Size | Sold by the meter, width 40 cm. Suitable for round ventilation ducts (Ø80–Ø200) as well as rectangular or square ducts, such as those found near windows or doors. |
| Thickness | Approximately 20 mm. |
| Materials | 100% polyester (at least 30% recycled material). |
| Area of application | Sound attenuation in ventilation ducts for homes, offices, schools, public environments, and industrial premises. |
| Unit | Sold by the meter and can be cut to the desired length. |
| Assembly | Pressed into ventilation ducts. Can be easily cut with scissors. |
| Colors/designs | White. |
| Surface texture | Soft, fiber-rich, and slightly compressed surface. Reminiscent of felt. |
| Weight | Approximately 225g/m². |
| Density | Approx. 11.25kg/m³. |
| Sustainability | High. Retains shape and function over time, even with repeated cleaning. |
| Origin/processing | Manufactured in Europe and processed in Sweden. |
| Environmental certifications | OEKO-TEX® Standard 100. Free from harmful substances. |
| Hypoallergenic | Yes, made from OEKO-TEX®-certified polyester without allergenic substances – suitable for sensitive indoor environments. |
| Odorless | Yes, odor-free, without harmful emissions, and safe for indoor environments. |
| Moisture resistance | Yes. Not affected by moisture, condensation, or humidity. |
| Mold resistance | Yes. Does not mold or rot. |
| UV resistance | Limited – the product is intended for indoor use and should not be exposed to direct sunlight for extended periods. |
| Care instructions | Vacuum on low power, shake off or rinse in lukewarm water. Allow to air dry. |
| Recyclability | Yes. Made from 100% recyclable polyester. |
| Packaging | Packaged in appropriate packaging such as cardboard, e-commerce bag, or corrugated cardboard depending on product variant and quantity. |
| Return policy | Not applicable. The product is exempt from the return policy as it is considered custom-made or tailored. |
| Right of withdrawal | Not applicable. According to the Distance Contracts Act, there is no right of withdrawal for custom-made goods. |
| Right to exchange | Not applicable. The product cannot be exchanged as it is manufactured or cut to order. |
| Warranty | 5 years. Covers material and manufacturing defects under normal indoor use. |
| Temperature resistance | Withstands normal variations in ventilation environments. Exact limits not specified. |
| Fire class | E-s3, d2 according to EN 13501-1. |
| GPSR (General Product Safety Regulation) | Manufacturer/Importer: SilentDirect AB, Nyängsgatan 6, 295 39 Bromölla, Sweden. E-mail: support@silentdirect.com |
Hej Sofia,
Ja denna kan man använda i en ventilationskanal eller faktiskt även framför/bakom ett exempelvis galler till en ventilationskanal. Man kan välja att ha ett lager eller så klipper/viker man och lägger flera lager på varandra, men ju fler lager så blir det mindre luft men mer dämpning. Utan att veta exakt hur du menar så tror jag ett lager eller max två lager borde bli en bra balans av luft vs dämning.
Vill du så maila gärna någon bild till oss hur du tänkt så kan vi hjälpa dig mer specifikt. Maila oss på kundservice@silentdirect.se
/ Håkan
Hej Amanda.
Bra fråga, hoppas mitt svar blir till någon hjälp.
Produkten SilentDirect Air kommer att försämra luftflödet från ventilationen.
Därför är det viktigt att då finna en balans mellan luftflödet och ljuddämpningen.
Det enklaste sättet är då att testa sig fram tills man uppnår det resultat man är ute efter.
Här har du en artikel ur vår kunskapsportal som även erbjuder några andra lösningar:
https://silentdirect.se/sv/page/hur-ljudisolerar-och-ljuddampar-man-oljud-fran-ventilationskanaler
Tack för din fråga, ha en fortsatt bra dag.
Har du fler frågor svarar jag dem gärna.
Vänliga Hälsningar:
/Elias
-
HämtaTest Air - NRC värde.pdf218.26 KB
Similar products
