Patent attributes
Unlike the existing powered air-purifying respirators (PAPR) that are bulky, heavy, and expensive the invention offers a light-weighted inexpensive portable PAPR consisted of a single piece secured on user's head. The respirator is for use in contaminated environment including one with highly contagious viruses such as SARS-CoV-2 that causes COVID-19. A clear visor of the respirator protects eyes, nose, and mouth. The rest of the user's head protected with a soft airtight cover. A small fan or fans pump air through the filters. Because the fan capacity exceeds airflow required for breathing, air pressure under the cover is slightly higher than ambient pressure. It protects the visor and user glasses from fogging and prevents leaks through any looseness. A special port allows use of equipment and devices as a stethoscope for medics or oxygen supply for patients. Despite the respirator primarily targeted for medical personnel and patients, its convenience, l lightness and affordability allow usage by general population especially at the time of an epidemic or a pandemic.
