Yes- it’s flypaper - like that First Defence spray you get in Boots.
So not specific to Covid but a film in your nose must surely be a good thing?
Here is what the authors say:
“One point that should perhaps be made more clearly is that Taffix is not a specific protection against a specific virus/receptor but a non specific physical and chemical blocker of viruses over the nasal cavity. The concept of non specific viral protection in the nose was thoroughly researched and proven by others ( Hull D, Rennie P,- ref 6, James E. Gern: Inhibition of Rhinovirus Replication In Vitro and In Vivo by Acid-Buffered Saline, JID 2007:195 (15 April) and Rennie, P., Bowtell, P., Hull, D. et al. Low pH gel intranasal sprays inactivate influenza viruses in vitro and protect ferrets against influenza infection. Respir Res 8, 38 (2007). doi.org/10.1186/1465-9921-8-38 ). We do not claim any specific interaction with the ACE receptor or the S- protein but rather a nonspecific blockage that prevents viruses from reaching cell surface. This last claim is supported by studies we performed in several viruses including the SARS- CoV-2 virus cited in the article and posted on the company’s website. 3. Taffix is classified as medical device class 1 and as such is subject to marketing authorization process. That marketing authorization in Europe is posted on our website and referred to in the article including the approved indication “ Taffix ™ is legally marketed in Europe (CE- DE/CA09/0760/N18/001) with the following Indication for Use: TaffiX ™is indicated for use as a protective mechanical barrier against allergens and viruses (e.g., SARS-CoV-2) within the nasal cavity.”