What is the biological safety cabinet?Biological safety cabinet is a box-type air purification negative pressure safety device. It can prevent certain dangerous or unknown biological particles from dissipating aerosols during the process of experimental operation. It is widely used in scientific res

Various health concerns arise from exposure to indoor air pollutants. The effects may be immediate or may show up years after exposure. Due to the ongoing pandemic, a lot of people spend most of their time indoors, thus making indoor air quality more important. Air pollutants can enter and accumulat

Wheelchair flag-bearer, wheelchair curling... At the Beijing Winter Paralympics, representatives from all walks of life shared a warm moment of harmony between the disabled and the healthy, and also made us realize the importance of rehabilitation equipment, including wheelchairs, for people with di

Formaldehyde is a colorless gas, often used as an aqueous solution called formalin. Formalin solutions contain up to 40% formaldehyde and at least 15% methanol as a stabilizing agent. Both formaldehyde gas and solutions have strong, pungent, and characteristic odors. These compounds are commonly use

The water purifier is a water treatment device that removes all solid impurities, salt ions, bacteria and viruses in the water through filtration, reverse osmosis, electrodialysis, ion exchanger, ultraviolet sterilization and other methods. The resistivity (25℃) of the produced pure water is general