How to judge whether indoor formaldehyde exceeds the standard

Method 1: Ventilation, if there are conditions, it will be better to ventilate with high temperature and high humidity, or use leaf wide mud material adsorption.

Method 2: Spraying Germany's Huankang aldehyde removal enzyme is an upgrade of photocatalyst, which can remove formaldehyde from the board intact.

Method 3: Plant potted plants. Spider plants, aloe vera, junzi orchid, and ivy are mostly placed in the room.

Simple methods, such as the newly renovated house, the indoor northern green plants are still yellow and wilted under normal watering, and the obvious feeling of pungent nose and spicy eyes when entering the room is a manifestation of excessive formaldehyde; However, if you want to know the specific value, you need to find a professional organization to test and analyze.

When decorating indoors, it is necessary to choose safe and environmentally friendly materials to avoid excessive formaldehyde. So how to judge whether indoor formaldehyde exceeds the standard? PChouse will take you to find out.

First of all, the most accurate way to judge indoor air quality is naturally instrumental measurement. At present, the available tools for measuring formaldehyde on the market, one is the formaldehyde self-test box, the other is the handheld formaldehyde detector, and the other is to ask a professional testing institution to do formaldehyde testing.

Secondly, the human body reacts. Normal people who stay in a house with excessive formaldehyde for more than half a day (some sensitive people for more than 2 hours) will have symptoms such as swelling of the throat, breathlessness, stinging eyes, phlegm and cough. Therefore, in the early stage of moving into a new house, everyone should pay attention to their physical condition.

If you enter the room, you will smell a pungent smell, and you will feel like your eyes want to water, you will have difficulty breathing, and your head will be clouded. It shows that the harmful gases in the home are already very serious, and it is not just formaldehyde.

Finally, the plant reacts. As we all know, the ability of home potted plants to purify the air is actually very subtle. So, the placement of plants after renovation is not so much to absorb formaldehyde as it is an indirect air quality test.

When a large number of green plants or spider plants placed at home have wilted, and more than one pot has wilted, it is likely to indicate that your formaldehyde exceeds the standard.

A formaldehyde detector can be used to detect indoor formaldehyde content.

Indoor smiling grip formaldehyde standards:

China's "Indoor Air Quality Standards" stipulates that the limit of formaldehyde in the indoor air of Class II civil construction projects is, and the limit of formaldehyde in the indoor air of Class I civil construction projects is.

How the formaldehyde detector works:

The formaldehyde detection instrument adopts the principle of high-sensitivity electrochemical Yeqing sensor, combined with single-chip microcomputer technology and network communication technology to collect air samples from the detection site, and the formaldehyde in the air is absorbed by the phenol reagent solution, and the reaction generates azine, which is oxidized by the chromogenic agent iron iron ion in the acidic solution to form blue-green compounds. According to the color shade, it is directly colorimetric determined on site.

Since the detection value of indoor pollution has a great relationship with the temperature, humidity, and air pressure of the detection environment, the detected value will often deviate from the expected according to the normal detection.

If you are worried about excessive indoor formaldehyde, you can consider the following methods to detect excessive indoor formaldehyde:

1. Use formaldehyde tester:

There are many formaldehyde testers on the market that can measure indoor formaldehyde concentrations. These instruments typically use an adsorbent to adsorb formaldehyde and then convert the adsorbed formaldehyde concentration to a corresponding number. If the measurement results exceed a certain standard, then it indicates that the indoor formaldehyde exceeds the standard.

2. Indoor air testing:

You can ask a professional testing agency to test the indoor air, and the test results usually show the value of formaldehyde concentration. If the air detection test results exceed a certain standard, then it indicates that the indoor formaldehyde exceeds the standard.

3. Use activated carbon or bamboo charcoal

Activated carbon or bamboo charcoal has the ability to adsorb formaldehyde, which can adsorb indoor formaldehyde into their pores. If the adsorption capacity of activated carbon or bamboo charcoal reaches a certain standard, it indicates that the indoor formaldehyde exceeds the standard.

4. Buy formaldehyde test paper by yourself

There are also some ways to buy your own formaldehyde test paper on the market, which can measure indoor formaldehyde concentration. These test strips usually use phenolic reagents to break down formaldehyde, and then develop the decomposition products to determine the value of formaldehyde concentration according to the color shade. If the test result exceeds a certain standard, then it indicates that the indoor formaldehyde exceeds the standard.

In general, if you are worried about excessive indoor formaldehyde, you can consider using a formaldehyde tester, indoor air testing, and using activated carbon or bamboo charcoal to detect excessive indoor formaldehyde. If the test result exceeds a certain standard, then it indicates that the indoor formaldehyde exceeds the standard.

After decorating the new house, it is necessary to let it sit for a period of time, and use some special effects to remove the formaldehyde in the room, so that it can be safer and you can move in with confidence. So how to detect whether indoor formaldehyde exceeds the standard, and what are the methods of indoor formaldehyde removal, do you understand? Now let's take a look.

1. How to detect whether indoor formaldehyde exceeds the standard.

1. Find a third-party company for testing, and see if the formaldehyde content exceeds the standard through the report given; 2. Use the formaldehyde self-test box to see if it exceeds the standard through the color comparison of the test; 3. If the family often has headaches and dizziness after moving in, you need to be vigilant; 4. In the renovated house, a few potted plants in the room, after a period of time, see its reaction.

2. What are the methods of indoor formaldehyde removal.

1. The formaldehyde content inside the newly renovated house is relatively high, and you can't move in immediately, you can ventilate it for a period of time, and wait for the indoor formaldehyde concentration to be reduced to a safe range, so you can move in with peace of mind. However, it is important to know that the formaldehyde concentration in the room is difficult to completely remove, and it takes a very long time.

2. The use of physical adsorption methods in the room, such as chlorobenzene adsorption method, is due to the fact that the electrical absorption contained in the chlorine atom is very strong, and it can be combined with the functional groups contained in formaldehyde to achieve the effect of decomposing formaldehyde, so as to remove formaldehyde and achieve a good adsorption effect, so that the indoor formaldehyde can be greatly reduced.

3. The edible vinegar we use in our daily life is also a tool to remove formaldehyde, which is due to the fact that vinegar presents the nature of weak acid, which will react with chlorine in the air and will not produce harmful gases. The most important thing is that the use of edible vinegar is very cheap, and the cost savings are very large.

As for how to detect whether indoor formaldehyde exceeds the standard, and what are the methods for indoor formaldehyde removal, I will introduce it here, do you understand? Indoor formaldehyde is very harmful to the human body, and it is necessary to reduce its concentration before you can move in with confidence.