Reusable Face Mask
Renewables & Environment - Cape Town, Western Cape, South Africa
Reusable Face Mask Employees
Reusable Face Mask Details
An independent evaluation was done on request for this locally produced, low-cost reusable system, consisting of a filter material that fits comfortably into a reusable fabric mask. The filter unit is reusable and can be removed to be disinfected between uses. The filter unit can be described as a polypropylene spunbond base with a polyester fibre layer.The filter unit passed under ISO 8 conditions for 0,5 and 1,9 micron and ISO7 for 5 microns (according to ISO14644 standard). The micro-particle count indicated an efficiency rate of more than 95% for particles size 5 μm, for the IPU D15 filter. The rating improved for IPU D15 tested in combination with the fabrics for the mask. 100% of particles >5 μm were filtered.The Reusable Face Mask with filter insert meets the requirements as follows: 1) The mask proves to be successful as a barrier to droplets larger than 5 μm (secreted at a speed similar to what happens if a person exhibits respiratory symptoms such as sneezing or coughing).2) Disinfection of all the components is easy to carry out at home as the only requirement is to expose the fabric for more than 5 minutes to boiling water. Care should be taken to avoid wringing or harsh handling though to prevent distortion of fabric structure during cleaning.3) Cleaning (soil or stain removal) of outer material must be easy. Any laundering method is suitable as the filter fabric can be removed for the cleaning process.4) All components are expected to be durable for the intended use cycle.5) The mask should be comfortable to wear – this could be addressed by proper design of the item according to wearers' requirements.6) An economical and available option – both were confirmed by the supplier in terms of the present situation.7) It is important the proper instructions on wearing and use, cleaning and disinfection, maintaining precautionary measures like hand hygiene, respiratory hygiene, and social distancing accompany the product.
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