Risk of injury from high carbon dioxide concentration!
Risk of suffocation and damage to health through carbon dioxide!
Low concentration (3-5 %) causes headaches and makes breathing difficult.
High concentration (7-10 %) causes headaches and nausea and leads to unconsciousness.
Even higher concentration leads to unconsciousness and death.
The highest non-hazardous CO2 concentration is 5000 ppm. A higher concentration is very
dangerous to humans (German MAK Scale IV).

• Operate the device only in well-ventilated spaces.
• Installation of a CO2 gas detector is recommended.

Risk of injury from electrical energy!
Unprotected electrical contacts, electrostatic processes, external effects on electrical systems
for example.

• Only qualified specialists are allowed to carry out work on electrical installations.