Environment

In recent years, when discussing air pollution, many people have focused primarily on PM2.5 particulate matter in the outdoor environment. However, a less-noticed fact is that indoor air quality is sometimes even worse, sometimes five to ten times higher than outdoor air quality. One of the common culprits for this is HCHO, also known as formaldehyde.

A self-recording hygrometer is a device used to monitor the temperature and humidity of the air. The device can automatically record data over time, allowing users to easily understand changes in the surrounding environment. The information is displayed visually on the screen, making observation and management of spatial conditions easier and more convenient.

Have you ever walked into a room and instantly felt more relaxed or alert thanks to the lighting? A color temperature chart will make you feel comfortable and suited to each space. This secret not only makes your home more beautiful but also directly impacts your health and daily productivity.

Have you ever wondered if there's any way to completely block the air pollutants that are infiltrating your lungs every day? In urban air, these air pollutants are silently threatening health, causing everything from asthma to cancer.

Did you know how much toxic fine dust is "hiding" in the air around your home? With air pollution worsening in major cities like Hanoi - which ranks among the world's worst for PM2.5 - knowing the method for measuring dust concentration not only helps you protect your family but also brings true peace of mind.

Recent statistics from the Vietnam Environmental Monitoring Center have shown that the concentration of fine dust particles PM2.5 and PM1.0 suspended in the air in two major cities, Hanoi and Ho Chi Minh City, is at a worrying level.

On the morning of December 1, 2025, Hanoi continued to record hazardous air pollution levels, ranking among the most polluted cities in the world according to IQAir. Many downtown areas were blanketed in fine dust, affecting both public health and traffic conditions.

Dissolved oxygen meter helps determine the amount of oxygen in water using DO sensor. Choosing the right measuring technology and equipment for each environment is the condition to ensure accuracy and efficiency.

Breakdown voltage represents the limit to which a material can maintain its insulating ability before a discharge occurs. When this value is reduced, the insulation has lost its stability and there is a risk of short circuit, leakage or equipment failure.

During the use of air quality meters, it is not uncommon for the device to display error codes such as E1, E2, E3. This is usually a sign that the sensor is malfunctioning, the device is affected by environmental conditions or needs to be recalibrated after a period of operation.