Researchers have found that there are two types of cells inside the nose that are the likely entry point for the COVID-19 virus. These cells work as “viral entry receptors” and are highly accessible to the coronavirus because of the location in the nose. (Sungnak et al. 2020)

This developed the idea of a nasal protection device that could reduce the exposure to viruses.

In 2021, NOSA launches NOSA control – a medical device that reduces the amount of viruses entering the nose in the air inhaled.

Tests by external laboratories have shown that NOSA control can reduce up to 93% of Coronavirus, Rhinovirus and Norovirus when in contact with the device. A reduced exposure of viruses has been shown to reduce the risk of respiratory infections.

The nose - the entry point for covid-19?


Sungnak , W, Huang, N, Bécavin , C, Berg, M, Queen, R, Litvinukova1, M, Talavera-López, C, Maatz, H, Reichart, D, Sampaziotis , F, Worlock, K B., Yoshida , M, Barnes, J L., & HCA Lung Biological Network 2020, ‘SARS-CoV-2 entry factors are highly expressed in nasal epithelial cells together with innate immune genes’, Nature Medicine, vol. 26, pp. 681–687