The masks purchased in the 10 million euros deal were found to be unfit for use by medical professionals.
The masks were pulled from use last Friday over complaints of allergic reactions and a strange odour.
The masks were taken out of use after workers reported allergic reactions.
The press examines Finland's adjusted coronavirus mortality rate, Onni Sarmaste's firm and Helsinki's clogged toilets.
The agency said it has also moved to void the related sales contracts and recover some of the money it handed over.
An external probe of the case is to wrap up on Tuesday.
Tomi Lounema admitted paying millions of euros for substandard equipment.
Finland has struggled to source hospital-grade personal protection equipment.
Finland ordered two million face masks that were not up to scratch.