Oxygen Self Rescuer

Oxygen Self Rescuer

Oxygen Self Rescuer (with chmical stored Oxygen)


Sauerstoffselbstretter_K-S30_300 SSR-Normal_webSauerstoffselbstretter_K-S30_open

              Ultralight                                               K-S30                                    unwrapped self-rescuer


The Oxygen Self Rescuer is the ultimate under the respiratory protection. It is always environmentally independent and therefore suitable for any situation where there are problems with ambient air. In addition, it is small enough to be constantly carried along. While other systems are dependent on a sufficient quantity of oxygen in the air and the air only needs to be purified by toxins, the ambient air can also be completely free of oxygen when an oxygen self-retter is used. Theoretically, it is even conceivable that there is no air for breathing, e.g. Under water. (However, the self-retractor is not designed for use under water, so this would be out of specification).

The simplest, smallest and lightest form of the Oxygen Self Rescuer works with chemically stored oxygen. This is stored in the form of KO2 granules. This granulate has two functions: Firstly it binds the carbon dioxide of the exhaled air and secondly there is oxygen in a reaction with the humidity of the exhaled air.
When exhaled, the moist exhaled air then flows over the KO2 cartridge and collects in a breathing bag, which thereby fills itself. The exhaled air is then re-inhaled in the same way. This is a so-called pendulum breathing. In order to prevent the potentially poisonous ambient air being inhaled, a nasal clamp must be worn in use.

The principle is based on the assumption that more oxygen is consumed in the case of stronger respiratory activity. In the case of increased breathing volume, therefore, more moisture also arrives at the cartridge, and thus more oxygen is released. It can happen that people under stress can have an increased breathing frequency without actually consuming more oxygen. As a result, more oxygen is released in the long term than is consumed. This can inflate the respiratory bag excessively. The excess air is then discharged automatically via a valve. Overall, the system is designed so that more oxygen is released. So the bag is always full.

What happens if you have to use the system and exhale before?
Then you would not have any air to blow it into your breath bag. The K-S30 has a starter cartridge. This produces a sufficient volume of pure oxygen sufficient for the filling of the system.
In contrast to the full-face respiratory protection mask, the self-retractor is very minimalist. It is therefore breathed through a short tube, at the end of which is a mouthpiece, as is known from snorkeling. A complete mask would increase the dead space unnecessarily and the system would not be as handy. For this reason, the eyes are also protected by an extra pair of glasses, comparable to a swimming goggles. It is fog-free for the duration of use.

Heat development:
Both the KO2 and the starter cartridge generate considerable heat during operation. This is normal. For use in Atex areas there are special versions in which an ignition effect is excluded.

We have the self-retractor K-S30 in two different designs:
1. Standard as it can be used in mining and sewage construction. This is CE-certified.
2. Ultralight, in a particularly light packaging as equipment for special forces. Without CE certification.

 Order number 230120 230121

 Type designiation

K-S30 Ultralight
 Inhaled airtemperature  <=50°C
 Maximum surfacetemperature 130°C
 Dimensions (mm) 178×172×122 153×131×75
 Weight (kg) 1,8 1,1
 Usage time

average walking speed: >= 30 min

sitting still: >= 120 min

 Effictive usage time

worn: 5 years
stored: 10 years

worn: depends on wear
and tear of vacuum bag

stored: 10 years



Display per page
Sort by

Oxygen Self Rescuer

Product no.: 230120

416.50 *
In stock
can be shipped within 2 days

Oxygen Self Rescuer K-S30 Ultralight

Product no.: 230123

416.50 *
In stock
can be shipped within 2 days

Rental Fee Exercise Device K-S30

Product no.: 230121

50.00 *
In stock
can be shipped within 10 days
Price incl. VAT, plus delivery