Category: Vesti

The effect of the HVAC UVC system proven by new research establishing the UVC dose required for disinfection of SARS CoV-2 (the Covid-19 virus)

Test results show that the virus could no longer be detected after seconds of exposure

New research from two independent studies provides data for the inactivation of SARS CoV-2 (the Covid-19 virus) with UVC light at 254 nm. Following the latest scientific advances, Propokan Pro updates the recommendations for use of the UVC HVAC system, with new, more beneficial values replacing the previously estimated averages based on old studies. 

Italian scientists, when evaluating the virucidal effects of UVC irradiation, came to the conclusion that 3,7 mJ/cm2 provides a log3 reduction, that is 99.9% disinfection, of SARS CoV-2 (Covid-19 virus). Their study shows that this is enough to successfully inactivate the viruses in saliva remaining after an infected person coughing so that no spread can occur. The disinfection effect is evaluated by an in vitro SARS-CoV-2 (Covid-19 virus) infection assay, exposing live cells to the virus before and after UVC exposure. The survival of cells exposed to UVC-inactivated virus, and the death of cells exposed to an untreated virus, indicates successful disinfection.

Research from Signify and Boston University found 5 mJ/cm2 (for a log2 reduction) [2], which would correspond to 7,5 mJ/cm2 (for a log3 reduction).  Since the start of the SARS CoV-2 pandemic, Dr. Anthony Griffiths, Associate Professor of Microbiology at Boston University School of Medicine, and his team have been working on developing tools to support scientific advancement in this field. During their research, they have treated inoculated material with different doses of UV-C radiation coming from a Signify light source and assessed the inactivation capacity under various conditions. The team applied a dose of 5mJ/cm2, resulting in a reduction of the SARS-CoV-2 virus of 99% in 6 seconds. Based on the data, it was determined that a dose of 22mJ/cmwill result in a reduction of 99.9999% in 25 seconds.

Both studies show significantly reduced dose requirements compared to the previous estimate (20,1 mJ/cm2 for a log3 reduction)[3] which was based on an average for different related viruses in the corona viridae family.

In light of this new pre-publications, we at Propokan Pro have decided to adjust our dose recommendation for disinfecting SARS CoV-2 (Covid-19 virus). While the works presented indicates 3,7-7,5 mJ/cm2 for a log3 reduction, we have chosen to add a margin to this when updating our recommendations. Taking this into account, our new recommendations are 10 mJ/cm2 for a log3 reduction, down from 20 mJ/cm2.

Stay tuned for Propokan Pro’s upcoming article with more information regarding this!

BUDI I TI HEROJ

Ministar za inovacije i tehnološki razvoj Republike Srbije Nenad Popović dodelio je zahvalnicu preduzeću Propokan Pro d.o.o. i ostalim predstavnicima inovacione zajednice, koji su u okviru inicijative „Budi i ti heroj“ svoja inovativna rešenja stavili na raspolaganje državi za vreme krize izazvane pandemijom virusa Covid-19. Ministar Popović je izjavio da „Plakete i zahvalnice koje danas dodeljujemo u ime Vlade Republike Srbije izraz su zahvalnosti vama, inovatorima i IT stručnjacima, koji ste svoje znanje potpuno besplatno stavili na raspolaganje državi u borbi protiv korona virusa. Ova priznanja ne označavaju kraj naše saradnje, već ohrabrenje da nastavimo zajedno da menjamo našu privredu, da razvijamo tehnologije u zdravstvu, bezbednosti, poljoprivredi i stavljamo ih u funkciju razvoja naše Srbije“. Ministar Popović je ukazao da je inicijativa „Budi i ti heroj“ pokrenuta u vremenu koje je nosilo veliku neizvesnost za zdravlje ljudi i budućnost čitave privrede Srbije. „Saradnja koju smo otpočeli u vreme pandemije pokazala je da možemo brzo da reagujemo i udružimo naše potencijale u sprečavanju širenja virusa, a istovremeno i da doprinesemo saniranju ekonomske štete nastale blokadom svih procesa rada i privređivanja“.

Propokan Pro u finalu takmičenja Najbolja tehnološka inovacija 2019. godine osvojio 5. mesto

Misija takmičenja za najbolju tehnološku inovaciju jeste promovisanje preduzetničke inovativne klime u Srbiji i pomoć potencijalnim i postojećim visoko-tehnološkim preduzetnicima/istraživačima, koji su spremni i sposobni da sopstvene ideje i invencije pretoče u tržišno valorizovane inovacije.

U finalu takmičenja za najbolju tehnološku inovaciju, održanom 21.12.2019. godine, u studiju RTS-a, tim Propokan Pro sa inovacijom “Protivpožarni kanal za ventilaciju i odvod dima zaštićen sistemom  PP premaza” osvojio je 5. mesto.

Termo izolacioni premaz

Novo u ponudi Propokan Pro d.o.o. THERMAL INSULATING COATING for metal is multi-purpose insulation for air-conditioning systems and central heating and plumbing installations.

THERMAL INSULATING COATING is a two-component base anti-corrosion coating based on the epoxy binder, filler, and special additives. Significantly reduces heat loss and effectively protects against freezing. At the same time, it also provides anti-corrosion protection of the coated surfaces.

Prezentacija Propokan sistema

  • 07.06.2019. In the premises of the Pitura paint and varnish factory a presentation of Propokan system protection of ventilation and smoke extraction ducts was held. The presentation was attended by representatives of large international construction investors in Serbia, representatives of the most prominent architectural and project offices, as well as representatives of companies that in Serbia perform more than 80% of work for the protection of ventilation and smoke extraction ducts. The large auditorium was addressed by the director of the company Propokan Pro d.o.o., Filip Cubric and technical director Slobodan Nikolic. In an interactive presentation, all participants were able to get informed with the most modern solution in the fire protection world, as well as to receive answers to all the problems related to the fire protection they encounter, which are unknown to them in their work on current construction sites across the country. After the presentation, all gathered had the opportunity for site tour of the Pitura production plant. Afterwards, in a relaxed atmosphere, with a suitable snack, all gathered has the opportunity to make new business connections with the representatives of the largest companies in Serbia in the field of construction and architecture.