Mittet provides sound inserts for soundproofing of silencers, ducts, baffles, plenum chamber and other ventilation components. It is also supplied absorbent for mounting directly in the ceiling or on the wall with mounting beams.

Sound absorbents

Sound absorbents

In Mittet, we deliver high quality sound absorbents for sound insulation, both in ventilation components and for improving acoustics in your workplace.



The sound absorbents can be easily mounted in ceilings with the brackets we deliver. You can then get better acoustics in your office or meeting rooms.



We can supply sound absorbers in all shapes. Please contact us and we will arrange a deal.

Technical specifications

Trade Name: DACRON®

  • Fiber class: Polyester (PES)
  • Chemical termination of the fiber: polyester
  • Poly - (ethylene terephthalate) CAS number
  • Form: Stapel fiber
  • Color: White
  • Odor: None

Physical data and safety data

  • Physical change: Melting point between 250 - 260 ° C
  • Density: 1.3 - 1.4 g / m³ @ 20 ° C
  • Evaporation capacity: Not volatile
  • Solubility in water: Not soluble
  • Thermal decomposition: begins to degrade at > 350 ° C
  • Hazardous Destructive Products: Depending on the temperature of air supply, the waste gases contained in combustion contain varying amounts of water and carbon dioxide, as well as small amounts of low molecular weight organic particles.

Transport Classification

  • Not regulated; not a dangerous product.
  • No separate identification is required in relation to EC Directive 67/548.

Safety when handling

  • Personal safety equipment: Not required
  • Working Hygiene: General cleaning of workplace and clothes.
  • Waste management: Can be recycled or burned
  • Fire Precautionary Measures: Extinguishing Media: All common extinguishing media including water, if the fire is not from an electrical cause.
  • First aid: Handle damage due to contact with molten fiber material. Contact a physician for eye damage, cuts, skin irritation, and burns.


  • The product can’t be linked with any known health hazard to humans.
  • Environmental effects: The product can’t be linked with any known environmental damage.


From a cyclical perspective, Dacron® is a material with many advantages. It is easy to identify. It is a thermoplastic material that can be melted by heating, since it is used in new products. Because it consists of polyethylene phthalate (same polymer as in PET bottles), there is already an organization for the recovery of the polymer. (KTH Work Report 1995: 8) Dacron® polyester can be burned and energy can be extracted. Depending on the temperature and air access, waste gases contain a varying amount of water, carbon dioxide, and small amounts of organic particles with low molecular weight by combustion. (Safety Data Sheet DuPont 8/1991).

Health aspects

No personal safety equipment is required when handling Dacron®. Dacron® fiber has been used for home furnishing, bedding and many applications in hospitals since the 1960s without any known problems. Dacron® does not create allergies, skin irritations or respiratory irritation. Dacron® is naturally white, odorless, rotten and moldless. Dacron® also causes no emissions.

Technical specifications