When it comes to air quality indicators, the first reaction of most people should be PM2.5. This is also the main source of pollution in smog weather. PM2.5, also known as fine particulate matter, is only particulate matter with an equivalent diameter of less than or equal to 2.5 microns in the air. It can be suspended in the air for a long time, and it is easy to carry toxic and harmful substances. It has a great impact on human health and environmental quality. However, as far as indoor air is concerned, just one PM2.5 indicator is a bit too thin. According to the "2019 White Paper on Indoor Air Pollution in China". The top two sources of indoor air pollution are formaldehyde and VOC, accounting for 97.3% of the total unqualified points. More worthy of our attention. It can be monitored with a formaldehyde sensor.
The harm of formaldehyde and the introduction of formaldehyde sensor
When formaldehyde reaches a certain concentration indoors, people will feel uncomfortable. Formaldehyde concentration greater than 0.08m³ can cause eye redness, eye itching, etc. Hoarseness, sneezing, chest tightness, asthma, dermatitis, etc. Newly renovated rooms have high formaldehyde content, which is the main cause of many diseases. When the formaldehyde concentration reaches 0.06-0.07mg/m3 per cubic meter of air, children will experience mild asthma.
When the formaldehyde in the indoor air reaches 0.1mg/m3, there will be odor and discomfort. When formaldehyde reaches 0.5mg/m3, it can irritate the eyes and cause tearing. Formaldehyde reaches 0.6mg/m3, which can cause throat discomfort or pain. At higher concentrations, it can cause nausea and vomiting, coughing and chest tightness, wheezing and even pulmonary edema. When formaldehyde reaches 30mg/m3, it will immediately cause death.
The formaldehyde sensor is stable, sensitive and reliable. With high-precision liquid crystal display, explosion-proof housing, diffusion or pump suction. The formaldehyde gas detector has the characteristics of flexible use and simple operation. Formaldehyde gas detector is suitable for various gas leakage places, such as: petroleum, chemical, pharmaceutical, steel and other fields. The explosion-proof grade of the combustible gas detector is CT6.