Regulatory press release

Airthings ASA - Mandatory notification of trade

Reference is made to the stock exchange announcement on 23 December 2025 by
Airthings ASA ("Airthings") regarding the final results of a subsequent offering
(the "Subsequent Offering").

The Company has been notified that a PDMR has been allocated shares in the
Subsequent Offering. Please see the attached PDMR notice for more information.