Air Sampling Hole Identification red and yellow

Air sampling holes are marked to ensure that the sampling point can be located quickly and accurately when air quality monitoring or sampling is required. Marking will usually include textual descriptions and graphic symbols for easy identification and understanding. The following are some suggested methods of signage:   1. **Signage**: A fixed signage can be installed with clear text labeled “Air Sampling Hole” or the corresponding English logo such as “Air Sampling Hole”. The color of the signage can be chosen to be eye-catching, such as yellow or orange, in order to increase visibility.   2. **Graphic Signs**: In addition to textual descriptions, graphic signs can be used to aid in identification. For example, an icon with an air flow arrow and a sampling device (e.g., suction pump) can help people understand the function of the location more quickly.   3. **Warning signs**: Considering the safety factor, especially in industrial environments,…