The pollutants in indoor air are more than formaldehyde, and testing instruments and equipment help safety
People are inseparable from oxygen all the time, and obtain oxygen by inhaling air. An adult needs to inhale air up to 5600 liters every day to obtain enough oxygen. Therefore, polluted air has a direct impact on human health. More than 90% of people's life is spent indoors, and the impact of indoor air quality on people is even more crucial. It is reported that the existence of indoor pollutants in the air is determined by its own physical and chemical properties and its formation process. There are more than 900 types of indoor air pollutants. At present, the well-known indoor air pollutants include benzene, formaldehyde, radioactive element radon and other substances. The sources of indoor air pollutants mainly include the following: Building decoration materials and indoor equipment, related pollution such as formaldehyde in phenolic resins, urea-formaldehyde resin compounds, various bacteria, fungi and spores brought by humidifiers, various volatile organic compounds in adhesives, etc.; toxic substances, including 16 kinds of volatile toxic substances in the breath substance. Radioactive pollution: that is, ionizing radiation pollution, radionuclides such as radon, thorium, and radium. Radon and its progeny penetrated by the housing base itself, as well as radioactive substances in various building materials. Biological contamination: Legionella, Actinomycetes and other bacteria, Aspergillus, Staphylococcus aureus and other fungi, germs, pollen, insect mites, etc. Naturally, the vast majority of human respiratory infectious diseases are pathogens that spread infection indoors. There are as many as 200 viruses that cause respiratory infections alone, and most of these infections are airborne indoors. It is not difficult to see that the pollutants in the indoor air can be more than formaldehyde, and the testing instruments and equipment help safety. First of all, a gas sensor is a device or device that can sense the type and concentration of a certain gas in the environment, and can convert its relevant information into electrical signals for monitoring, analysis and alarming of the gas to be measured. Furthermore, indoor air quality detectors can improve health management, and air quality monitoring parameters also play an important role in daily health management. The indoor air quality detector can include monitoring items: radon, formaldehyde, ammonia, benzene, toluene, xylene, TVOC, etc., which are in line with the definition of indoor air quality pollutants in the new version of GB50325-2020. Strengthening these air quality monitoring can help us detect pollution in time, and control air pollution through intelligent equipment such as fresh air, thereby enhancing indoor air quality in public places and reducing the risk of disease.
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Cut resistance is one of the most critical performance indicators in personal protective equipment (PPE) testing, directly affecting worker safety in high-risk industries such as metal processing, machinery manufacturing, and emergency rescue. The TDM Cut Test Machine GT-KC28 plays a vital role in accurately evaluating the cut resistance of PPE products, including gloves, protective clothing, footwear materials, composite materials, rubber, and industrial textiles.
By adopting high-precision force control systems, intelligent data processing, and stable transmission technology, the GT-KC28 TDM Cut Tester can accurately measure the critical cutting force of materials and ensure excellent repeatability and comparability of test results. Its user-friendly touch-screen operation, comprehensive data storage, USB data export, and built-in thermal printer greatly improve laboratory efficiency and data traceability.
The TDM Cut Test Machine GT-KC28 fully complies with major international and national standards such as ISO 13997, EN 388, ASTM F2992/F2992M, ANSI/ISEA 105, and GB 24541-2022, making it a reliable solution for PPE manufacturers, third-party testing laboratories, and research institutions. Through precise and standardized cut resistance testing, the GT-KC28 helps reduce industrial cutting injuries, supports PPE certification across global markets, and ensures that protective equipment delivers reliable safety performance in real-world applications.
The air permeability tester is a high-precision testing instrument designed to evaluate the breathability of PPE materials, textile fabrics, non-woven fabrics, woven fabrics, and industrial filter media. It plays a critical role in quality control, product development, and laboratory research across multiple industries including PPE, textiles, automotive interiors, and filtration systems.
Modern instruments such as the GT-C27 Air Permeability Tester are developed with advanced sensor systems, automated control logic, and multi-standard compatibility to ensure reliable and repeatable results. Complying with global standards such as ISO 9237, ASTM D737, DIN 53887, and GB/T 5453, it guarantees internationally recognized testing performance.
With high automation, accurate pressure sensing, and flexible unit conversion systems, air permeability testing equipment significantly improves testing efficiency while reducing human error. It is widely used in PPE manufacturing, textile engineering, non-woven product development, and industrial filtration quality inspection.
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