ORÅ Mask, powered by Viaex Technologies, was envisaged in an American laboratory and designed locally in San Francisco, CA.
The ORÅ Nano Mask Filter stops 99% of PM2.5 particles, including dust, and other air pollutants, pollen, dander and other allergens, bacteria and other germs, harmful gases, smoke (including from wildfires) and other fumes with its five-layer protection and hypoallergenic hydrophobic nanofilter.
Our filter has achieved 99% particle removal efficiency, based on EN143 European certification standards and third-party testing.
The inner layer of our filter is comprised of a nanofiber membrane that is constructed from recyclable plastic fibers in a non-woven pattern (Fig. 1). Fibers are on the order of 85 ± 20 nm in diameter. This nanoscopic morphology creates uniquely small pores and drastically increases the membrane surface area, while leaving open air travel paths in 99% of the membrane volume. Personal filter masks have been tested to show facile breathability with high microfabrication capacity.
Figure 1: SEM image of nanofibers (left) and histogram of nanofiber diameters (right). Fibers are randomly oriented in the membrane plane, creating sub-micron pore sizes throughout the membrane. Fibers are 85 ± 20 nm in diameter.