Heating, ventilation, and air conditioning (HVAC) systems are comprehensive systems that precisely control and regulate the temperature, humidity, cleanliness, airflow speed, and pressure of air within a building through three core functions: heating, ventilation, and air conditioning.

They are the "breathing system" of modern buildings (especially in places with extremely high environmental requirements such as biopharmaceuticals, electronics, and hospitals), with the core objective of ensuring human comfort and meeting the specific process/usage requirements of the environment.

In fields with stringent cleanroom requirements, such as biopharmaceuticals and medical devices, particle counters are core tools for ensuring GMP compliance and controlling production quality. The online handheld integrated particle counter, based on a standard sampling flow rate of 2.83 L/min, combines the advantages of online monitoring and handheld portability, making it the preferred solution for cleanroom air particulate detection, fully adaptable to the testing needs of cleanrooms ranging from Class 100 to Class 100,000.

Cleanroom air conditioning (cleanroom air conditioning) is a specialized air conditioning system designed specifically for cleanrooms. Its core function is to control temperature, humidity, and air pressure, and to achieve compliance with standards for indoor air cleanliness, airflow organization, and suspended particle/microbial concentration through multi-stage air filtration. It is a core supporting equipment for modular cleanrooms, operating rooms, and pharmaceutical/electronic cleanrooms, and directly determines the operational effectiveness and compliance of the cleanroom.

According to the international cleanroom standard ISO 14644, a Class 100 cleanroom is equivalent to Class 5. For a Class 100 cleanroom, the airflow pattern is either vertical or horizontal unidirectional, with an airflow velocity of 0.2~0.5 m/s. The number of 0.5 μm dust particles in a Class 100 cleanroom is 3520 PCS/m³. Under normal circumstances, the fill ratio should reach 80%, with a minimum of 60% for vertical unidirectional flow and a minimum of 40% for horizontal unidirectional flow; otherwise, it is considered localized unidirectional flow.

Cleanroom design is fundamental to micro-contamination control. Through professional cleanroom design, it involves controlling temperature, humidity, cleanliness, indoor pressure, airflow distribution, noise and vibration, lighting, bacteria, and static electricity within a defined space, keeping these within acceptable limits. Our years of project management experience give us unique insights into the rationality and feasibility of cleanroom design solutions. We utilize effective project management methods and advanced cleanroom design technologies to ensure project quality and adherence to design parameters.

In the installation of PVC flooring, welding wire (PVC-specific welding wire) is used. Its core function is to heat-melt and seal the joints, fusing the joints of two PVC floorboards into a whole. It is a key step in the seamless installation of PVC roll flooring/sheet flooring, rather than an auxiliary step in ordinary splicing.

A three-sided air shower is a type of air shower. It is a local purification device that uses a fan to blow highly filtered clean air onto the surface of people or objects to remove dust when people or goods enter the clean area.

Fixed medical cabinets with drawers are commonly used storage devices in operating rooms, combining the stability of fixed installation with the convenience of drawer storage.