If you think that when you have a face mask and you think you are safe from Covid-19?
Think again.
Coronavirus virions are spherical and diameter app. 125 nm.
That is 0.125 microns. The basic single-use mask lets through even 3 micron size particles.
But so does N95 respirator masks and FFP3 surgical masks, often used by military.
Latest studies show how it can become airborne and spread in aerosols, even fairly long distances. Which is why WHO recently changed their recommendations regarding protection of medical personnel.
There is a patented decontamination unit which can solve this. Previously used during the SARS epidemic, these are now helping to fight Covid-19 in hospitals and other healthcare locations around the world.
These units can remove and arrest ultra-fine particles down to 3 nm which HEPA filtering can't reach. This is 0.003 microns is over 40 times smaller than Covid-19 virus.
The application of institutional accreditation within the primary health care and the family health centered and it falls within the health matters, but it is considered one of the basic matters because the primary health care activities are the biggest guarantee of the national health security and it is that secures the improvement of quality as one of the basic requirements and is based on family health because it is based on the nucleus Society, which is the family, and ensuring its active participation in upgrading health services, as well as ensuring effective participation in the rest of society, leading to the required integration.
It is an interesting question. Heating, Ventilation and Air Conditioning (HVAC) systems are of great importance in hospitals. (HVAC) systems can represent between 30% and 40% of the total energy consumed in a hospital. These systems are made up of machines of great complexity and diversity, which causes them to be very expensive. Modifications to the (HVAC) systems to adapt them to the new epidemiological conditions established by the presence of COVID-19; they represent major transformations in the design and operation of (HVAC) systems. In this area of knowledge, scientists and engineers have strived to develop more energy efficient and / or integrated (HVAC) processes with renewable energy sources and energy storage systems. All this in order to reduce the operating costs of the systems (HVAC). The new epidemiological conditions pose a great challenge in the design and operation of these thermal and flow machines. These machines are the ones that guarantee the quality of indoor air and thermal comfort inside buildings.