FIRE SAFE INDOOR CLIMATE
WHAT IS A FIRE SAFE
An indoor climate may apply hypoxic air
technology (HA) for fire prevention, also known
as oxygen reduction system. HA is an active
fire protection technique based on a permanent
reduction of the oxygen concentration in
protected rooms: the oxygen concentration is
reduced typically from 21% (normal air) to 15%
(as inside passenger aircraft cabins).
In an hypoxic air environment, common materials
cannot ignite or burn while at the same time
people can work and breathe normally.
Air with reduced oxygen content is supplied to
the protected volumes: no gases other than
those present in normal air are supplied.
• server rom, ICT, datacenter, industry, nuclear
power plants, mission critical rooms
• museums, galleries, libraries and archives:
hypoxic air reduces oxidation of artefacts or
documents to preserve them better
• fruit and vegetable storages: hypoxic air
reduces food deterioration
• large warehouses and freezer storages
where water based extignuishing systems are
• feasibility analysis, health and
• system specification and design
• integration in the building, engineering of
• inspection for approval and certification of
system design, health and safety
• Geir Jensen, COWI Trondheim
email@example.com, +47 907 83 007
• Stefano Chiti, COWI Trondheim
firstname.lastname@example.org, +47 455 17 988
• Vibeke Nossum, COWI Trondheim
email@example.com, +47 951 54 182
• Forsmark nuclear power plant, Sweden
• Green Mountain Data Centre, Norway (ICT room)
• Fonterra Brands Cold Stores, New Zealand
• RAK Bank, UAE
• Nytt Østfoldsykehus (hospital), Norway (ICT room)
• Museum of Cultural History, Norway (storage)
• St. Olavs Hospital, Norway (ICT room)
Oxygen concentration in hypoxic air atmosphere is equivalent to 2500 -2800 meter of altitude
COWI is a leading consulting group that creates
value for customers, people and society
through our unique 360° approach. Based
on our world-class competencies within
engineering, economics and environmental
science, we tackle challenges from many
vantage points to create coherent solutions
for our customer.
With offices all over the world, we combine
global presence with local knowledge to take
on projects anywhere in the world - large or
small. At any given moment, we are involved
in more than 17,000 projects. We have more
than 80 years experience in the business
and COWI is a leader within its field because
our more than 6,300 employees are leaders
within theirs. Together with our customers,
we create coherence in tomorrows
FIRE SAFE INDOOR CLIMATE
COWI - FIRST IN THE WORLD!
COWl is leading consultancy company on hypoxic air fire prevention since 2005.
COWl is internationally accredited as inspection body for hypoxic air fire prevention systems
to comply with BSI (British Standard Institution) and VdS standards.
COWl can inspect and approve design,operation,installation and integration of hypoxic fire
prevention systems in the building, The accreditation area include health and safety
assessment of the applications as well – a global first.
Fire safe indoor climate system installed at
the Museum of Cultural History in Oslo
WHERE ARE HYPOXIC AIR FIRE
PREVENTION SYSTEMS INSTALLED?
Worldwide, more than 500 hypoxic air fire prevention systems are installed.
Most systems are installed in ICT rooms, archives, wharehouses,
data centres or freezer storages. COWI engages in diverse projects on
hypoxic air: a 250 000 m³ archive in UAE, a 200 000 m³ freezer storage in
New Zealand and a nuclear power plant in Sweden.
Also, a 35 000 m³ data centre inside a mountain plus multiple smaller
Fire safe indoor climate: you can work and occupy the room as normal;
the air is very clean