New homes require formaldehyde testing; only when formaldehyde levels are within the normal range is it suitable for habitation. If the formaldehyde content exceeds the standard, formaldehyde removal is necessary. Therefore, when removing formaldehyde, it's crucial to understand the cost of formaldehyde testing in new homes, as well as common misconceptions about formaldehyde removal. Many people use inaccurate methods, resulting in unsatisfactory outcomes.
How much does it cost to test formaldehyde in a new house?
1. Portable Formaldehyde Detectors: There are numerous handheld formaldehyde detectors available on Taobao, ranging in price from $100 to $1000. These devices operate based on electrochemical reactions, converting chemical signals into electrical signals and displaying them digitally for easy interpretation. The key component of these devices is the sensor, which boasts high sensitivity. However, the detection data from these sensors can be easily interfered with by various gases such as smoke, alcohol, and VOCs, resulting in less reliable results.
2. The 6-in-1 Detector, also available on Taobao, is slightly more expensive than handheld detectors, with the 6-in-1 or 8-in-1 models costing around $1,000. These detectors rely on absorbing air into a liquid, then adding a colorant, mixing it well, and identifying the concentration through a spectrophotodiode. The instrument is advertised to simultaneously detect multiple pollutants such as formaldehyde, benzene, radon, xylene, and TVOCs. However, our research reveals that the colorant is manually added, and the amount of colorant added during the detection process directly affects the results, meaning the results can be manipulated to be either high or low as desired.
3. Imported Formaldehyde Detectors: Commonly available imported formaldehyde detectors in the market include the Interscan 4160 from the U.S. (priced around $20,000), the ppm-400 from the U.K. (priced around $18,000), and the S-27 from Japan (priced around $12,000). The instruments from the U.S. and the U.K. are electrochemical sensors, offering high detection accuracy and sensitivity, but they require regular calibration.
Misconceptions About甲醛 Removal in New Homes?
1. Green plants for甲醛 removal: Placing some green plants indoors is a less effective method, as plants absorb formaldehyde through photosynthesis, which means they lose this function in the absence of light. The absorption rate is low, with only about 20 micrograms being absorbed, requiring hundreds of plants in a room to be effective. Moreover, at high concentrations, the plants themselves can die!
2. Short-term products for formaldehyde removal, such as sprays, coatings, and activated carbon claimed to remove formaldehyde on the market, although these methods have some effect, they are short-lived, ineffective, and may even lead to secondary pollution.
3. Plant Removal Method: For moderate to low pollution, selecting plants for purification can be effective: Generally, indoor environmental pollution is light to moderate, with pollution levels below three times the national standards. Using plant purification can achieve relatively good results. Choose and place plants based on the different functions of the room and the size of the area. In most cases, for rooms of about 10 square meters, two pots of plants 1.5 meters tall are relatively suitable.
The explanation above pertains to the cost of formaldehyde detection in new homes. The price factor is not fixed; however, different prices often reflect different methods and levels of formaldehyde removal. Therefore, do not be misled by price variations. It is also important to understand the common misconceptions about formaldehyde removal in new homes, as there are many methods available. Many people fall into these misconceptions, leading to the failure of formaldehyde removal in new homes.
