Certified masks
Product and scope of delivery
The DFA mask program currently includes 3 certified masks.
Here you will find the instructions for use for all three types.
Sono E3
Our antiviral E3 masks are currently certified according to EN 14683 type II and have CE conformity.
The antiviral outer layer of our E3 masks is also certified according to ISO 20743 (antibacterial effect) and ISO 18184 (antiviral effect).
For further details on our product, please find the data sheet here.
Sono E5
Our E5 masks are currently certified according to EN 14683 type II and have CE conformity..
For further details on our product, please find the data sheet here.
Sono E6
Our E6 masks are currently certified according to EN 14683 type IIR and have CE conformity..
For further details on our product, please find the data sheet here.
If you have any questions about the product, please contact our sales team by email:
Sono-MN(at)dfabielefeld.de
Click here to visit our online store partner for masks!
Masks as a kit (produced until 07/2020)
The still available kit consists of the following components:
- Filter medium
- Self-adhesive nose clip
- Elastic band
- Assembly instructions
Read more…
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
- Instructions for assembling the 4-hole SonoMN
- Instructions for the assembly of the 6-hole SonoMN, rear-ear wearing version
- Instructions for assembling the 6-hole SonoMN carrying version Back of the head
- Instructions for assembling the 7-hole SonoMN
- Instructions for assembling the 7-hole SonoMN, reusable rubber bands
Video instructions for the corresponding variants are available on Youtube (here the links):
- Instructions for assembling the 4hole SonoMN
- Instructions for assembling the 6hole SonoMN
- Instructions for assembling the 7hole SonoMN
- Instructions for assembling the 7hole SonoMN, alternative folding
- Instructions for assembling the 7-hole SonoMN, ear loop extension
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 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.
