The core objective of PCR laboratory cleanroom engineering is to prevent the spread of nucleic acid aerosols and avoid false-positive results. Industry standards typically classify these facilities into categories—ranging from basic routine PCR laboratories and standard BSL-2 clinical PCR laboratories to enhanced BSL-2 PCR laboratories and high-pathogenicity pathogen BSL-3 PCR laboratories—based on the risk level of the targets being tested and regulatory requirements; differentiated standards are applied regarding cleanliness levels, pressure differentials and ventilation, layout and isolation, and fit-out specifications.

Laboratory furniture serves as the fundamental infrastructure for testing, R&D, and experimental activities, encompassing core equipment such as laboratory benches, fume hoods, glassware cabinets, and side benches. The quality of installation directly impacts operational safety, equipment stability, and service life, while also influencing the integration and performance of utility systems—including water, electricity, ventilation, and drainage. Unlike the installation of standard office furniture, the installation of laboratory furniture requires adherence to specialized, standardized procedures, with strict controls on precision and safety standards.

Organic synthesis laboratories frequently store organic solvents, flammable reagents, and strong acids and bases, creating an environment where volatile, flammable vapors can easily accumulate. Flooring and wall surfaces must not only withstand chemical corrosion but also prevent static electricity buildup while complying with explosion-proof safety standards. The primary construction challenges lie in substrate preparation, material selection, detailing at junctions, grounding systems, airtight installation, and compatibility with long-term operation and maintenance.

Ventilation systems for organic synthesis laboratories represent the highest-cost, lowest fault-tolerance, and most difficult-to-retrofit component of full laboratory fit-out works. Their core design objectives are as follows:


1.Timely exhaust flammable and toxic VOC vapors;2.Maintain stable negative indoor pressure to prevent odor leakage to adjacent areas;3.Keep the concentration of organic solvent vapors inside ductwork below the lower explosive limit (LEL);4.Avoid drastic fluctuations in indoor temperature and humidity caused by high-volume exhaust air.
The complete ventilation system consists of six core subsystems: local exhaust ventilation (primarily fume hoods), general room exhaust, makeup air supply, duct piping, waste gas treatment, and automated interlock control. Each subsystem carries unique challenges in design and construction.

Scientific and standardized planning and design are crucial for the safe operation of laboratories, efficient experimentation, and compliant review and acceptance. To meet the construction needs of various laboratories and avoid common design flaws, laboratory construction can follow a streamlined, practical design system that comprehensively considers safety, usability, compliance, and scalability.