We list the approved materials for filters for the ADAM model. We keep on developing the model in a multidimensional way with parallel filters for different requirements.
(+) this is the know material used in the traditional masks in the middle of the sandwiched textile.
(+) high fabrication speed once the industrial production is set up
(-) this is the material everybody in the world wants and the resources are running out or it is subject to excessive market dynamics.
(-) a lot of western countries don’t have industrial fabrication, so setting up a factory will take months to maybe a year.
Why the Meltblown cassette is available in the ADAM model? A lot of groups, companies, authorities are working hard to get the production up and running in our countries. Once the availability is high, the mask can be used with the minimal of material needed, once you have the basic personal reusable facial part. This will be the cheapest of the cassettes.
(+) Nano spun material is an extremely fine textile. The virus is 0,1 micron and is carried by for example a tiny water drop so the virus size carried in the air is 0,3 micron. Therefor we need textile that can hold this. Nano technology can do this.
(+) we have local research centers that are doing tests and the first production unites are set up in Spain and France.
(+) We need little material, smaller filters, so better aesthetics and usability for specific requirement of wearing the mask all day, have to perform highly detailed and focused handling.
(-) electrospinning is slow and experimental for the moment.
(-) this material cannot be used stand alone, so you need another textile to carry it. Which makes the production chain longer.
Why electrospinning is a possible filter in the ADAM model? We believe we need a solution on the longer term that can be produced locally. The high end fine material has a lot of advantages in wearability but it will come with a higher price.
bad designed chinees masks
(+) there are a lot of them. They are designed for Asian faces and do not fit the Caucasian face. But if proven the material itself is good, why not reuse it in the filter.
(+) we can make 2 filters from 1 mask
(-) the batch is confiscated, so the gouvernement has to approve and deliver.
(-) limited resources
Why we reuse bad designed masks in the ADAM model? Because in times of scarcity of resources we cannot waste any material that can be used to protect people from the virus.
(+) Available because it is used in household supplies, such as vacuum cleaner filters. (not all of them! but hyper allergic higher protection filters, marked as merv13)
(+) tested to protect for 0,3 micron
(-) big, so big cassette needed, which can hinder the user
(-) price varies a lot
Why ADAM uses a HEPA cassette? Logistics can be set up relatively quick. So this model can maybe be the fastest to be delivered.