https://eur-lex.europa.eu/legal-content/RO/TXT/PDF/?uri=CELEX:32016R1969&from=HU
https://data.consilium.europa.eu/doc/document/ST-7815-2009-INIT/ro/pdf
https://www.aerovent.com/wp-content/uploads/2018/12/Fans-with-CE-Mark-Romanian-ES-2-06.pdf