How to detect formaldehyde in a new house

Many people move into their new homes after they feel that they have no smell after renovation. In fact, there is still a lot of formaldehyde in the room. Formaldehyde cannot be judged by smell. Investigations have found that in many new homes, most formaldehyde levels exceed the standard. Therefore, some people leave their homes for a long time after renovation, even up to two years. Formaldehyde has no smell or color, so how do you detect formaldehyde in a new home?

First, how to detect formaldehyde in a new house? Standard testing is conducted by a professional and qualified testing agency in accordance with the "national standards" and has certain legal effect. You can think of this passage as a definition of standard testing. Of course, this definition is mine. We also welcome criticism and correction from professionals! "Professional and qualified testing agencies" are what we often call testing agencies that must have at least CMA certification. Such agencies specialize in testing the concentration of chemical substances in indoor air. "CMA Certification", everyone just needs to know that this is a qualification certificate issued by the Quality and Technical Supervision and Inspection Bureau of local governments after review and examination. When this institution starts testing or at least when collecting money, you just need to ask them to show this certificate. "National standards" refer to the limit standards issued by the country for harmful indoor chemicals, and standard testing is carried out strictly in accordance with the standards stipulated by the country.

Second, simple testing is a test of formaldehyde and other harmful substance concentrations conducted by specialized institutions or individual consumers in accordance with national standards, which has only reference value and no legal effect. Consumers have a demand for simple testing: standard testing is done by professional institutions sending professionals to collect samples, analyze and produce results, and the test results are accurate and highly precise. This is the advantage of standard testing. However, standard tests also have shortcomings. Standard testing requires an appointment in advance, and the results are not available immediately after the test. You have to wait about a week, which is not only time-consuming but also causes many inconveniences in the operation. Moreover, the cost of standard testing is relatively high. From a national perspective, professional testing agencies, especially the more authoritative professional testing agencies, are concentrated in first-tier cities such as Beijing, Shanghai, and Shenzhen. At the local level, even in provincial capitals, trustworthy professional testing agencies are a scarce resource. Therefore, consumers have always had a demand for simple tests that are relatively simple, convenient, and have relatively low testing costs, and this demand will continue to grow.

How to detect formaldehyde in a new house? Portable on-site detectors are mainly provided to professional testing agencies or formaldehyde pollution control agencies (i.e. formaldehyde removal companies). They are a relatively convenient formaldehyde detection instrument that displays digital results on-site.