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Face shields provide a barrier for aerosols droplets expelled off body fluids and are commonly used as an alternative to goggles as they provide protection to a larger area of ​​the face. The face shields are not generally used by themselves, but in combination with other protective equipment and are therefore classified as additional individual protective equipment.

Using  flue virus cough aerosol simulator (8.5 μm volume mean aerosol diameter) and a breath simulator, Lindsley et al. (1) reported 96% and 92% decrease in immediate exposure risk area for a cough at distances of 183 cm and 72 cm respectively.

(1) Lindsley WG, Notes JD, Blachere FM, Szalajda JV, Beezhold DH. Efficacy of Face Shields Against Cough Aerosol Droplets from a Cough Simulator. J Occup Environ Hyg. 2014; 11: 509 – 518

Description

CovidZiera fulfills the following conditions:

– can be folded

– has double grip (horizontal and vertical)

– is very comfortable due to the silicone protective lining

– It is easy to put on, remove and fasten on the head due to the Velcro clamps

– is very light (80 grams)

– limits the exposure to aerosols droplets which are spread in front and above the eyes / nose / mouth area, while providing superior ventilation (less retained dermal facial heat) by 2 side slots behind the protection points according to EN 166 F

– provides protection to a wider face surface compared to standard protective glasses

– the materials used allow disinfection using the equipment and methods of disinfection in the sanitary environment

– can be disinfected using isopropyl alcohol (spirit) or any other alcohol- based solution with a concentration of 70% – 80%;

– can be packed / stored in a small volume (disassembled)

– can be easily assembled / disassembled, within seconds

– is modular, so if a component breaks down / is damaged, only that component can be replaced

– it can be used for several hours, without interruption, without physically disturbing the carrier

– the transparent part has enough distance to the nose and mouth protection mask

– can be worn with eyeglasses

– meets the standards:

SR EN ISO 10993-1 – Biological assessment of medical devices

SR EN 166 – Individual eye protection

Side protection

CovidZiera covers the side protection points EN166 on the Anderson head to meet the requirements of EN166 F.

 

Parts

1. Vertical and horizontal clamping system – VELCRO tape

2. Folding visor –

PLA plastic

3. Silicone protection – RTV silicone

4. Sighet – PVC

 

  1. Vertical and horizontal clamping system – VELCRO tape

– 1,5 cm width

– color: black

  1. Sight – PVC cover

– thickness: 250 – 300 microns

– sizes: A4 (297 mm x 210 mm)

– color: transparent

  1. Silicone protection – RTV silicone addition (ZA 22-2)

– durability and high resistance to temperature (250° C)

– anti-sticking properties

– hardness: 21 ± 2 ShA

– force breaking: 4.0 ± 0.2 N / mm²

– tensile breaking: 380 ± 20%

– color: blue

  1. Folding visor – PLA plastic

– plastic type: biodegradable PLA (polylactic acid)

– color: different colors

– The developed 3D design will be made available to all potential manufacturers according to a Creative Commons CC BY-NC-ND license, to ensure compliance with the technical specifications

Sterilization

  1. Vertical and horizontal fastening system – material: Polyamide

– Sterilization with ethylene oxide – according to the regulations in force

– Radiation sterilization (Gamma, Electron Beam) – according to the regulations in force

– Sterilization with ethyl alcohol – concentration <80%

(Ethylene Oxide (EtO), Gamma Irradiation, Electron Beam)

  1. Sight – material: PVC

– Autoclave sterilization – 120° C, 15 minutes

– Dry heat sterilization – 160° C, 2 hours

– Sterilization with ethylene oxide – according to the regulations in force

– Radiation sterilization (Gamma, Electron Beam) – according to the regulations in force

– Sterilization with ethyl alcohol – concentration <80%

(Autoclave, Dry Heat, Ethylene Oxide (EtO), Gamma Irradiation, Electron Beam)

  1. Silicone protection – material: Silicon

– Autoclave sterilization – 120° C, 15 minutes

– Dry heat sterilization – 160° C, 2 hours

– Sterilization with ethylene oxide – according to the regulations in force

– Radiation sterilization (Gamma, Electron Beam) – according to the regulations in force

– Sterilization with ethyl alcohol – concentration <80%

(Autoclave, Dry Heat, Ethylene Oxide (EtO), Gamma Irradiation, Electron Beam)

  1. Folding sow – material: PLA (polylactic acid)

– Sterilization with ethylene oxide – according to the regulations in force

– Radiation sterilization (Gamma, Electron Beam) – according to the regulations in force

– Sterilization with ethyl alcohol – concentration <80%

(Dry Heat, Ethylene Oxide (EtO), Gamma Irradiation, Electron Beam)

Caution!

– CovidZiera can help to protect yourself against certain airborne contaminants; however, CovidZier requires additional personal protective equipment.

– CovidZiera does not provide full protection of the head, eyes and face against impact and penetration. When exposed to eye and face hazards, wear additional eye and / or face protection that is appropriate to the hazard.

– People with a weak respiratory system, such as asthma or emphysema, should see a doctor for a medical evaluation before use.

Storage conditions and validity period

– Before use, store CovidZiera in its original packaging, away from contaminated areas, dust, sunlight, extreme temperatures, excessive humidity and harmful chemicals.

Limitations of use

– Do not use with parts or accessories other than those manufactured as described in this document.

– Misuse of personal protective equipment can lead to injury, illness or other complications.

Assembly mode

1.    Fix the sight to the center guide and support pins
2. Fix the sight to the side guide and support pins
3. Insert the edge of the visor into the slot, taking care that the visor does not come out of the guide and support pin
4. Insert the visor by firmly pushing
5. Insert the Velcro tapes

A.
B.
C.

 

6. Add the silicone tape by pressing