How to choose the right equipment to detect formaldehyde（HCHO））

How to choose the right equipment to detect formaldehyde(HCHO)

What is Formaldehyde

Formaldehyde, is an organic compound with a chemical formula of HCHO or CH2O [1] and a molecular weight of 30.03 [2]. It is a colorless and irritating gas, which is irritating to human eyes and nose. The relative density of gas is 1.067 (air=1), and the density of liquid is 0.815g/cm3 (-20℃). Melting point -92°C, boiling point -19.5°C. Soluble in water and ethanol. The concentration of the aqueous solution can reach up to 55%, generally 35%-40%, usually 37%, called formalin, commonly known as formalin.

Formaldehyde detection standard

Formaldehyde has a pungent odor, which can be smelled at low concentrations. The human sense of smell of formaldehyde is usually 0.06-0.07mg/m3. Children are more sensitive to the smell of formaldehyde, and the national standard of 0.1mg/m3 is formulated for adults. And it is tested after being closed for 12 hours, not in a ventilated state.

What forms of Formaldehyde exist in life

Clothing: Formaldehyde can brighten the color of textile clothing, maintain the durability of dyeing, and improve the anti-wrinkle and anti-shrink function of textile clothing. In the textile industry, formaldehyde is widely used.

Food: Formaldehyde can change the color of the surface of food, and also has antiseptic function. Therefore, some businesses will use it to soak seafood to maintain the color of seafood. Some businesses also add formaldehyde to pasta to whiten it. However, the state has expressly stipulated that it is forbidden to add formaldehyde in food.

Living: Many materials used for decoration contain formaldehyde, such as artificial boards, wallpapers, paints, coatings and so on. Therefore, the newly renovated new home has to be placed for half a year, or even a year before it can be moved in.

Action: Many of the decorative materials in the car contain formaldehyde, such as seat cushions, seat covers and so on.

The dangers of Formaldehyde

Formaldehyde mainly has an irritating effect on human skin and mucous membranes, and when it reaches a certain concentration, people can smell it. Long-term exposure to formaldehyde can cause headache, dizziness, decreased immunity, neurasthenia, etc., and can cause damage to the respiratory system and liver cells. In severe cases, it can directly lead to death

How to detect Formaldehyde

Equipment advantage

1.Detected:CO2, PM2.5, VOC, HCHO, Temperature, Humidity

2.Can work in the Tuya App to get exact Value at any time

3.The equipment sensitivity is the same as that of professional testing instruments