We have a variety of cutting-edge plants, punches and robotic-supported presses. Extremely short and efficient communication channels enable us to ensure individual planning and implementation in close cooperation with our customers.

Mouth and nose protection masks (SONO MN)

 

Product and scope of delivery

In the fight against the COVID 19 virus, protective masks are an important tool and in great demand. We have reacted to this demand at short notice - developed a mask and changed our production. Our mouth-nose protection masks are available as an assembled, ready to use mask (SONO MN E5) or as a kit (SONO MN).

 

Assembled Mask (SONO MN E5)

Our oronasal protection masks are certified according to EN 14683 Typ II  and have a CE-Conformity.

For further details on our product, please find the data sheet here.

  • Minimum order quantity: 1.500 masks
  • 1.500 masks packed in a cardboard box approx. 13kg, 800x600x400mm
  • From 15.000 masks on, foil wrapped on a one-way pallet, approx. 150kg, 1200x800x2200mm

If you have any questions about the product (availability, prices, …) or would like to place an order, please contact our sales team by email Sono-MN(at)dfabielefeld.de

 

Masks as a kit (SONO MN)

The still available kit consists of the following components:

  • Filter medium
  • Self-adhesive nose clip
  • Elastic band
  • Assembly instructions

Our oronasal protection masks are certified according to EN 14683. In addition we had a special permit from the Federal Institute for Drugs and Medical Devices (BfArM). The protective effect of our masks for use during the corona pandemic has been confirmed not only by the BfArM but also by hygiene physicians from surrounding hospitals.

For further details on our product, please find the data sheet here.

  • Minimum order quantity: 1,000 masks
  • Quantities of up to 5,000 units usually available at short notice
  • 1.000 masks packed in a cardboard box approx. 13kg, 800x600x400mm
  • From 10.000 masks on, foil wrapped on a one-way pallet, approx. 150kg, 1200x800x2200mm

If you have any questions about the product (availability, prices, …) or would like to place an order, please contact our sales team by email Sono-MN(at)dfabielefeld.de


And one more hint about the kit in own matter:
Masks, nose clips and rubbers are packed by weight. With a positive tolerance we make sure that you get enough material to assemble the ordered number of masks. As a consequence, however, the number of components may not be 100% complete and you may have some materials left over.

 

Installation Instructions

Continuous improvements since March 2020 have produced various mask variants.

All PDF assembly instructions (in German) are linked here

Video instructions for the corresponding variants are available on Youtube (here the links):

 

Motiviation

We are an automotive supplier for acoustic materials, primarily for VW, Audi, BMW and Daimler, and as a medium-sized family-owned company. For years we have been producing our own microfibre fleece made of polypropylene. Our materials meet the test standards for car passenger compartments of BMW, Mercedes and the VW group and millions of our products are used in these vehicles. Due to the standstill of our customers, production capacities are available.
It was and is our concern to use our meltblown plant capacity in the common fight against the COVID19 virus. This requires speed and pragmatism.
On March 20, we therefore started the development of a mouth-nose protection mask and delivered the first models in the same month.


 

We wish you good health.

Your team from DFA Bielefeld GmbH

 

SONOZORB - best absorption, lowest weight

SONOZORB is a brand name of our partner GDC Inc. in Goshen, Indiana. Together, we are able to offer absorber-fleece produced by a melt-blown process on different continents. Under the name SONOZORB B. we produce different variants exclusively for the European market.

Meanwhile, our product has been released for many OEMs and first Tier customers and is used for series production in various areas (exterior and interior). All details can be received on demand at one of our OEM sales colleagues or our specialists.

Our technologies – for customized solutions

The THL technology (Tailored Heavy Layer), which we use for making sound insulation of PUR foam and heavy foils as weight and function optimized as possible, is a very good example for customized efficiency. After the first series application in the VW Passat, the next series application is currently being developed.

Our products – virtuosos in application

The DFA Bielefeld GmbH offers a wide variety of products and services:

The following exemplary components are used at various parts of the automotive sector, such as the end-wall region (inside, outside), but they can now be found in almost all interior areas as well. The materials and component properties are also very different. They are used for airborne sound absorption and airborne sound insulation.

DFA Bielefeld GmbH
Ernst-Graebe-Str. 10
33611 Bielefeld
Phone: +49 (0)521 5240 - 5
Fax: +49 (0)521 5240 - 442
Email: contactmail

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