Carbon  dioxide  snow  (”dry ice” snow)  is  very  cold,  about  -78°C (-108°F).  But being cold  does  not  necessarily  mean  being  able to  cool.  Or,  put  another way:  big temperature  difference is  not  the  same  as  high  energy  transfer.

The Cryonite effect - the rapid freezing - is dependent on a certain mix of particle sizes and speeds.

The cooling occurs in several phases, where each phase has an optimal combination of a particle size and speed, for attaining maximum cooling rate.

Having somewhat bigger particles in the mix, makes the particle-stream efficacious also at longer ranges, and in warmer surroundings.

The speed helps the penetration deep into thin cracks and crevices, in buildings as well as in machines, and also hurtles them through long pipes.

But the speed is also an integral part of the freezing itself.

For the energy transfer to be efficient, the ice-particles need good contact with the target (bug or surface). A high speed makes for a good, contact-making impact on the target.

The snow that is produced by a fire extinguisher, has of course another goal than freezing tiny bugs. It is therefore of a very different quality. Compared to Cryonite snow, the particle size is big, and the particle speed is slow. Regarding killing bugs, it simply cannot get the work done. (We might as well admit here that Cryonite is a lousy fire extinguisher).

The Cryonite effect - the rapid freezing - is dependent on a certain mix of particle sizes and speeds.

The cooling occurs in several phases, where each phase has an optimal combination of a particle size and speed, for attaining maximum cooling rate.

Having somewhat bigger particles in the mix, makes the particle-stream efficacious also at longer ranges, and in warmer surroundings.

The speed helps the penetration deep into thin cracks and crevices, in buildings as well as in machines, and also hurtles them through long pipes.

But the speed is also an integral part of the freezing itself.

For the energy transfer to be efficient, the ice-particles need good contact with the target (bug or surface). A high speed makes for a good, contact-making impact on the target.

CRYONITE UNIT

The Cryonite unit consists of several parts:

• trolley (for the gas cylinder)
• hose (high pressure, steel reinforced)
• gun
• earthing clamp and conductor
• additional tools

The individual parts of the unit are designed to work together, letting the operator work efficiently, while doing treatments in different surroundings.

The gun is first and foremost the holder for the nozzle, which produces the patented Cryonite snow, without which efficiency would be close to nil.

The gun is also designed for ergonomy and reach. As the method relies upon getting the snow to hit the pest, the nozzle needs to be angled this way and that, to blow the snow into all hiding places. The snow has generally a good penetration, both regarding small openings (narrow slits), and depth (long pipes). Even so, a more accurate targeting / angling allows for even better penetration.

Some examples on ergonomy:

One of the usual hiding places are cracks between wall and floor. The gun can be extended, allowing for an upright working position. And the nose can be bent to point in the desired direction - here usually fairly horizontal, straight into the crack.

When working under benches and other furniture / machinery, it can be extended down, and pointed up under them, again allowing for a more upright working positiion.

The hose is about 4 metres long, allowing for a good working length / radius, before having to move the trolley.

If you need to protect very sensitive electronic equipment (as for when, see our Manual), the earthing clip is easy to attach and also has a long connecting cable, allowing for a good action radius.

The trolley easily carries the gas cylinder, containing some 7-10 kgs of gas. This size gives a good working time, before having to change it. It also has holders for all the rest: gun, hose, tools, earthing, making a coherent package.