Controlled atmosphere technology is nitrogen technology, especially for the protection of cultural heritage, using organic materials as support (such as wood, paper, fabrics, etc.), which are prone to degradation and pre oxidation due to the use of the most diverse substrates of these materials as food by some insects.

By using our equipment and technology for specific processing, we can preserve the integrity of wooden artifacts and structures, canvases, tapestries, and manuscripts.

In practice, similar to food disinfection, specific waterproof shells are created to isolate the workpiece to be treated, and the percentage of oxygen is reduced by controlling the introduction of nitrogen gas; In this way, due to lack of oxygen, the invading insects are eliminated.

The processing time and volume involved depend on temperature and relative humidity, the type of weed, and its developmental status. After processing, the cultural heritage can still be preserved in a specially sealed box and always in a nitrogen state.