Air monitoring is the quantitative-qualitative assessment of the extent of pollutants. It is performed to ensure compliance with legislation and to evaluate control measures and mitigation solutions. There are numerous approaches to measure airborne formaldehyde (FA), ranging from passive sampling techniques to remote sensing devices. Research of sampling procedures and analytical methods was performed in a scientific database and on the web to offer a scenario of the devices and techniques that can be used to assess FA exposure. Moreover, in the design of FA assessment, some crucial aspects were considered, such as standard atmosphere generation for devices calibration. This review summarizes the tools and basics used in FA air monitoring, useful to organize a functional monitoring strategy for assessment of FA concentration levels. An insight into the sampling and analysis of FA is provided. Recent advances in solid sorbent technology allow analysts to use these devices coupled to chromatographic instruments. A comparison of the strengths and weaknesses of analytical methods (gas-/liquid-chromatography coupled with mass spectrometry or UV detection, chromogenic, colorimetric, electrochemical determination) and sampling devices (impregnated papers, solid sorbents, liquid sorbents, bubblers, impingers, micro-impingers, denuder samplers, sealed bags, canisters) methods are illustrated. This survey found that a monitoring strategy should be planned considering the most appropriate methodology in terms of costs and practicability. Therefore, it is necessary to know the aspects that can make the chosen strategy suitable and valid for the exposure scenario under investigation.

空气监测是对污染物范围的定量定性评估。这样做是为了确保遵守法律并评估控制措施和缓解措施。从被动采样技术到遥感设备，测量空气中甲醛（FA）的方法有很多。在科学数据库和网络上对采样程序和分析方法进行了研究，以提供可用于评估FA暴露的设备和技术的情景。此外，在FA评估的设计中，考虑了一些关键方面，例如用于设备校准的标准气氛生成。这篇综述总结了FA空气监测中使用的工具和基础知识，可用于组织用于评估FA浓度水平的功能监测策略。提供了有关FA采样和分析的见解。固体吸附剂技术的最新进展使分析人员可以将这些设备与色谱仪器结合使用。比较分析方法（气相/液相色谱结合质谱或UV检测，发色，比色法，电化学测定）和取样装置（浸渍纸，固体吸附剂，液体吸附剂，起泡器，撞击器，微型装置）的优缺点示出了撞击器，剥蚀器采样器，密封袋，罐等方法。该调查发现，应该在成本和实用性方面考虑最合适的方法来制定监控策略。因此，有必要知道可以使所选策略适用于所研究的暴露场景的方面。