NOT FOR DISTRIBUTION, RELEASE OR PUBLICATION, IN WHOLE OR IN PART, IN OR INTO
CANADA, AUSTRALIA, NEW ZEALAND, SOUTH AFRICA, SOUTH KOREA, HONG KONG, JAPAN OR
ANY OTHER JURISDICTION IN WHICH THE DISTRIBUTION, RELEASE OR PUBLICATION WOULD
BE UNLAWFUL OR REQUIRE PRIOR APPROVAL 

Reference is made to the stock exchange announcement made by Airthings ASA
("Airthings" or the "Company") on 8 October 2025, where it was announced that
Firda AS ("Firda") had crossed the 1/3 threshold under Section 6-1 of the
Norwegian Securities Trading Act, thereby triggering an obligation to make a bid
for the remaining shares in the Company that it does not already own, in
accordance with Chapter 6 of the Norwegian Securities Trading Act. 

The offer document for the Offer (the "Offer Document") was approved by the
Financial Supervisory Authority of Norway in its capacity as take-over
supervisory authority on 3 November 2025. The acceptance period for the Offer
will commence on 4 November 2025 at 09:00 (CET) and will expire on 2 December
2025 at 16:30 (CET) (the "Acceptance Period"). The terms and conditions of the
Offer, including procedures for how to accept the Offer, are set out in the
Offer Document. 

The Offer can only be accepted pursuant to the Offer Document and will not be
made in any jurisdiction in which the making of the Offer would not be in
compliance with the laws of such jurisdiction, and the Offer may not be accepted
by shareholders of Airthings who cannot legally accept the Offer. The Offer
Document will be sent to all shareholders in the Company as registered in the
Company's shareholder register in Euronext Securities Oslo, the central
securities depository in Norway, as of the date hereof, in jurisdictions where
the Offer Document may be lawfully distributed. Subject to regulatory
restrictions in certain jurisdictions, the Offer Document is also available at
the following webpage: www.dnb.no/emisjoner and may be obtained free of charge
during ordinary business hours at the offices of the receiving agent, DNB
Carnegie, a part of DNB Bank ASA, Dronning Eufemias gate 30, 0191 Oslo, Norway. 

Key Terms of the Offer

o	Offer Price: NOK 0.10 per Share payable in cash, subject to adjustment
pursuant to the terms and conditions of the Offer (if any). 

o	Acceptance Period: From and including 4 November 2025 at 09:00 (CET) to and
including 4 December 2025 at 16:30 (CET). The Acceptance Period will not be
extended, unless a new bid is deemed to have been made, as per section 6-10 (5)
of the Norwegian Securities Trading Act. In such a case, the Acceptance Period
will be extended to ensure that at least two weeks remain until its expiry, as
per section 6-12 (2) the Norwegian Securities Trading Act.

o	Receiving Agent: DNB Carnegie, a part of DNB Bank ASA. 

The Offer Price is the same as the offer price in the fully underwritten private
placement announced by the Company on 11 September 2025, representing the
highest payment Firda has made or agreed to in the six-month period prior to the
point at which the mandatory bid obligation was triggered.

Advisers 

DNB Carnegie, a part of DNB Bank ASA is acting as financial advisor and
receiving agent. 

*** 

The Offer, the Offer Document and the distribution of this announcement and
other information in connection with the Offer may be restricted by law in
certain jurisdictions. The Offer Document and related acceptance forms will not
and may not be distributed, forwarded or transmitted into or within any
jurisdiction where prohibited by applicable law, including, without limitation,
Canada, Australia, New Zealand, South Africa, South Korea and Japan. The Offeror
does not assume any responsibility in the event there is a violation by any
person of such restrictions. Persons into whose possession this announcement or
such other information should come are required to inform themselves about and
to observe any such restrictions. 
This announcement is not an offer document and, as such, does not constitute an
offer or the solicitation of an offer to acquire the Shares. Investors may
accept the Offer only on the basis of the information provided in the Offer
Document. Offers will not be made directly or indirectly in any jurisdiction
where either an offer or participation therein is prohibited by applicable law
or where any tender offer document or registration or other requirements would
apply in addition to those undertaken in Norway. 

Notice to U.S. Holders 

U.S. Holders (as defined below) are advised that the Shares are not listed on a
U.S. securities exchange and that the Company is not subject to the periodic
reporting requirements of the U.S. Securities Exchange Act of 1934, as amended
(the "U.S. Exchange Act"), and is not required to, and does not, file any
reports with the U.S. Securities and Exchange Commission (the "SEC") thereunder.
The Offer is being made to holders of Shares resident in the United States
("U.S. Holders") on the same terms and conditions as those made to all other
holders of Shares of the Company to whom an offer is made. Any information
documents, including this Offer Document, are being disseminated to U.S. Holders
on a basis comparable to the method that such documents are provided to the
Company's other shareholders to whom an offer is made. The Offer is being made
by the Offeror and no one else.

The Offer relates to shares of a Norwegian company listed and trading on
Euronext Oslo Børs and is subject to the legal provisions of the Norwegian
Securities Trading Act regarding the implementation and disclosure requirements
for such an offer, which differ substantially from the corresponding legal
provisions of the United States. For example, the financial statements and
certain financial information in this Offer Document have been determined in
accordance with IFRS® Accounting Standards as adopted by the EU ("IFRS") and may
therefore not be comparable to the financial statements or financial information
of U.S. companies and other companies whose financial information is determined
in accordance with the Generally Accepted Accounting Principles of the United
States.

The Offer is being made to U.S. Holders in compliance with section 14(e) and
Regulation 14E under the U.S. Exchange Act, including available exemptions
thereunder and otherwise in accordance with the requirements of Norwegian law.
Accordingly, the Offer is subject to disclosure and other procedural
requirements, including with respect to the offer timetable, that are different
from those would be applicable under U.S. domestic tender offer procedures and
law. Furthermore, the payment and settlement procedure with respect to the Offer
will comply with the relevant rules of the Norwegian Securities Trading Act,
which differ from payment and settlement procedures customary in the United
States, particularly with regard to the payment date of the consideration.

Pursuant to an exemption from Rule 14e-5 under the U.S. Exchange Act, the
Offeror and its affiliates or brokers (acting as agents for the Offeror or its
affiliates, as applicable) may from time to time, and other than pursuant to the
Offer, directly or indirectly, purchase or arrange to purchase, Shares or any
securities that are convertible into, exchangeable for or exercisable for such
Shares outside the United States during the period in which the Offer remains
open for acceptance, so long as those acquisitions or arrangements comply with
applicable Norwegian law and practice and the provisions of such exemption. To
the extent information about such purchases or arrangements to purchase is made
public in Norway, such information will be disclosed by means of a press release
or other means reasonably calculated to inform U.S. Holders of such information.
In addition, the receiving agent may also engage in ordinary course trading
activities in securities of the Company, which may include purchases or
arrangements to purchase such securities.

The Financial Supervisory Authority of Norway has approved the Offer Document.
Neither the SEC nor any securities supervisory authority of any state or other
jurisdiction in the United States has approved or disapproved this Offer or
reviewed it for its fairness, nor have the contents of this Offer Document or
any other documentation relating to the Offer been reviewed for accuracy,
completeness or fairness by the SEC nor any securities supervisory authority of
any state or other jurisdiction in the United States. Any representation to the
contrary is a criminal offence in the United States.