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All DFA masks are foldable disposable respirators, have a special design based on FFP masks and are from our own production in Germany. The Sono masks are closer to the face and thus offer the wearer and the environment significantly greater protection and security against viruses than the classic mouth and nose protective masks with folds. The newly developed FFP2 mask Sono E2, which was approved in autumn 2021 and also manufactured in Germany, as well as the antiviral mask Sono E3 offer the best possible personal protection in the pandemic with high wearing comfort and low breathing resistance, as the masks do not have a valve.
Medical antiviral
Respirator
three layered medical face mask with elastic bands and nickelfree nose clip on top of the filter with antiviral properties.
certified medical face mask with high bacterial filter efficiency. in addition the outer layer contains an antiviral and antibacterial finish. the mask reduces the probability of an infection of the user and his surrounding.
| Bacterial filter efficiency | ≥ 98 % BFE (Type II) |
| Virus degradation | ≥ 99,9 % after 1 hour |
| bacteria reduction | ≥ 99,95 % after 18 hours |
Certificates
EN 14 683 by HygCen, Austria, No. 2026009/153 dated 2020-11-20
ISO 18184:2019 by Eurovir Hygiene Labor dated 2020-05-23
ISO 20 743 by Fa. Hohenstein Laboratories GmbH & Co. KG, No. 20.8.3.0057/1 dated 2020-07-09
Medical protective mask
Medical face mask with elastic bands and nickelfree nose clip on top of the filter. Medical face mask for the use by medical (or comparable) personal in contact with the patient. The mask reduces the probability of an infection of the patient and the user. Not for the use during invasive operations (no splash resistence).
| Bacterial filter efficiency | ≥ 98 % BFE (Type II) |
Certificates
EN 14 683 by Fa. HygCen, Austria,
No. 2024463/080 dated 2020-07-01
No. 2024463/154 dated 2020-11-20
Medical surgical mask
Medical face mask with elastic bands and nickelfree nose clip on top of the filter.
Medical face mask for the use by medical (or comparable) personal in contact with the patient. The mask reduces the probability of an infection of the patient and the user.
| Bacterial filter efficiency | ≥ 98 % BFE (Type IIR) |
Certificates
EN 14 683 by Fa. HygCen, Austria,
Certificate No. 2025679/155 dated 2020-11-20