I hope that my idea will help overcome the shortage of anti covid 2019 (corona virus) tissu´s quantities. This divice is able to up grade any home made or medical grade face mask or surgical one. Its completly reusable and easy to decontaminate. Please read the disclaimer including the fact that its efficency has not been experimentally prooved yet and that till now I didnt find any proof that the p.u. weather foam when used as shown here could be toxic through inhalation since its not in a spray form but I invite any one to send me any scientific proof or evidence. #covid_2019 #respiratormask #surgicalmask #diyfacemask #ffp2 #coronavirus #tunis