FAQ about security fog protection
If you do not find the answer to
your question about security fog protection, please feel free to call us or send
us an email.
Will the fog damage my equipment and
No, the fog is completely harmless - even for IT equipment,
hi-fi systems, eyewear, precious metals, clothing and fur. This has
been documented by the Danish Technological Institute and through
years of experience by users all over the world.
Photo: Security fog protection at the electronics chain Hi-Fi
Klubben in Denmark. The fog cannon fits in well with the hi-fi
>>> Read more under Test &
Approvals of security fog protection. Click here!
Is the fog harmful to humans or animals?
No, the dense fog is quite harmless. This has been documented by
laboratories in Denmark and abroad, including by the Danish
>>> Read more
under Test & Approvals of security fog protection. Click
How quickly do we need to air out?
If your fog cannon has been activated, you or your security
company need to immediately begin airing out within one hour after
discharge. PROTECT A/S cannot be held liable for any damage or
inconvenience caused by the condensed fog fluid.
You can find our product liability insurance in the box on the
right side of this page!
Can't the burglar simply wait until the fog dissipates?
A fog cannon from PROTECT can be adjusted to discharge at
intervals in order to maintain the fog level in a room. PROTECT has
the market's longest dissipation time of up to one hour.
Furthermore, the fog cannon is activated every time the
security/PIR sensor registers movement in the room. Consequently it
does not help to wait until the fog dissipates.
What can I do to ensure that my employees don't accidentally
activate the alarm?
The security fog protection is activated by the alarm system.
However with a PROTECT Fog Cannon it is also technically possible
to avoid unintended discharge. Ask your alarm installation
We always recommend that our alarm installation contractors
demonstrate to the staff what to do in case of accidental
Is there a risk that the fire brigade will turn up?
The fog looks like smoke, but when the system is activated, the
control centre will be able to contact the fire authorities so that
they do not turn up because a white 'smoke' is coming out of the
Please note that if someone makes a bona fide emergency call about
a fire/smoke, and it turns out that it is security fog protection,
the emergency services do not have the legal authority
to send the owner of the security fog protection system a bill for
the false alarm.
Can I install a security fog protection system when I already
have a fire alarm system?
Yes, but your fire alarm system must be equipped with the
correct sensors. Find out more from your alarm installation
Please note that the sprinkler system is normally not triggered by
the security fog protection system.
What happens if a burglar cuts off the power?
A PROTECT Fog Cannon can also be activated even when the power
to the building and the alarm system have been cut off. This is
ensured by the built-in back-up battery, which keeps the fog cannon
heated for up to three hours. This functionality gives you extra
How do I get rid of the fog again?
Even though the fog is so dense that you cannot see your hand in
front of your face, when you air out it will be completely gone
within about 20 min. with strong ventilation. Afterwards, there
will be no more signs that the fog protection has been
However, it is important ventilation begins within one hour of the
alarm having activated the fog cannon at the latest.
When do I have to replace the fluid container?
Just like petrol in a car, it is important that there is always
fog fluid in the fog cannon. Luckily, our fog cannon sends a signal
to the control centre and makes a beeping sound in the room to let
users know that it is time to replace the fluid.
Please note that PROTECT A/S is not responsible for any losses
or damage as a result of low fluid levels.
Are there any requirements for security fog protection?
Yes. Some insurance companies all over the world require
security fog protection in certain types of companies, such as
jewellers and watchmakers. Insurance companies may also require
security fog protection if you have repeatedly experienced
What do I do if my room is too small or too big?
Security fog protection can be used in spaces of all sizes. Your
alarm installation contractor can work with you to assess exactly
what you should protect with fog. Then he will measure the space
and determine which model you should use and how many you
If you have very high ceilings, we have a solution to this
challenge. If you have a very small room, you should consider the
FOQUS model. PROTECT has fog cannons for every need.
It is dangerous for the burglar?
Security fog protection has one simple and straightforward
function - to cut off access to valuable property for more than an
hour by rendering it invisible. A fog cannon will not catch a
burglar in a building or cut off his escape route in any way. The
objective is to confront burglars with the fog so that they
immediately flee out the way they got in, thus avoiding lost
Does the fog smell?
PROTECT's has a faint scent of peppermint which disappears again
as the fog dissipates. This means that the room can be used again
immediately after ventilation.
Can a fog cannon provide protection from burglaries,
robberies and assaults?
Yes, it can. PROTECT Fog Cannons are not only used to prevent
break-ins and vandalism when authorised personnel have left the
building. Fog security is also used to foil potential
According to the worldwide standard for fog security a Fog Cannon
can be used together with a panic button when robbers enter for
example a shop.
Kiosks, fuel stations, jewellers' shops and banks all successfully
use Fog Cannons activated
by a panic button to foil potential robbers.
Can I install security fog protection as the only security
Security fog protection is a supplement to a standard alarm
system, which is what gives the necessary signal that activates the
fog cannon. The signal from the alarm system to the control centre
also provides important information about, e.g., malfunction, low
fluid levels and sabotage of the fog cannon. A fog cannon should
therefore not be used on its own.
Can I adjust the fog cannon myself?
Possibly, but it is not permitted. First, you must be authorised
to work with electrical installations. Second, the guarantee on the
fog cannon becomes void if the installation is not carried out by
an authorised alarm installation contractor. And third, expert
knowledge is required to dimension, install and adjust the fog
cannon. That is why you must use an alarm installation contractor
who has been approved and trained by PROTECT A/S.
How do I decide how many fog cannons and which models I
Your alarm installation contractor measures the spaces you want
to protect with fog. Based on these calculations and other
observations, the contractor can quote you a price for a security
fog protection system.
Is a fog cannon the same as a smoke cannon?
Yes, they are exactly the same. The word smoke cannon comes from
smoke machine, which is used to make cool effects in theatres and
at rock concerts. Even though none of these machines actually makes
smoke, it looks like smoke. That is why many people refer to a fog
cannon as a smoke cannon.
Is security fog protection expensive to operate?
No. A fog cannon from PROTECT does not consume more standby
power than a standard light bulb. The combination of high
reliability, a long service life and minimal maintenance makes a
fog cannon very economical.
Our fluid containers are also refillable, which keeps the price of
Finally, a fog cannon is so effective that your investment
represents a savings in potentially lost earnings and higher
Can't I just buy a cheap discount model over the Internet?
Probably, you should remember that they may give you a false
sense of security? With security fog protection, as with many other
things, there is a direct correlation between price and quality.
The high-quality products from PROTECT, a wholly-owned Danish
company, comply with all EU legislation for security fog
protection. That is your guarantee that no one will come to harm
during installation. It is also your guarantee that the fog cannon
actually lives up to its claims.
Finally, you win in the long term with a fog cannon from PROTECT,
which comes with proven high efficiency and a long service life.
And if something should break, you can quickly obtain spare parts
for your PROTECT fog cannon, which also comes with a guarantee of
up to three years! PROTECT stands for quality and elegant design -
and is very economical for our users.
Can't I just make do with an alarm system or surveillance
Sure, but if you do get uninvited guests, they will most likely
still be able to run off with your valuables. Burglars know that
nothing happens within the first 10-15 minutes, even if you have a
burglar alarm. And if you have surveillance cameras, burglars can
just cover their faces. With security fog protection, however, you
stop the burglary before anything is stolen.
What is the fog content?
The fog is a dry fog produced by combining water and glycol, and
then forcing the mixture through a heating element. This is the
same principle as in smoke machines in the theatre and at
Can I hide the fog cannon?
Yes! Our fog cannons are prepared for hidden installation under
the ceiling or behind a wall. Only a little hole is needed to allow
the fog to pour out into the room.
If the fog cannon is placed in a space under the roof slope or in
the attic, you need to make sure that it is dry and always has a
temperature of above 5 degrees C.
And if the fog cannon cannot reach the ceiling or the wall, we
have a special extension piece for the nozzle. Just ask your alarm