Various daily physical disinfection methods for transfer windows and corresponding applicable scenarios
1. Ultraviolet UV-C irradiation (the most mainstream and universally applicable daily disinfection method across the industry) Applicable scenarios
Electronic dust-free workshops (100,000-level, 10,000-level)
Daily transfer of lithium batteries, optics, plastics, hardware components, packaging consumables, rapid killing of floating bacteria on the surface of materials, meeting routine clean control requirements.
Food clean packaging workshop, daily chemical-free cleaning workshop
Intermediate packaging materials, finished products, small tools transfer, no chemical residues, no contamination of products.
General hospital laboratory, outpatient pharmacy, general clean operating room
Transfer of test samples, medical consumables, small instruments, simple operation, fast disinfection.
Non-sterile medical device production clean area
Daily entry and exit of parts and testing tools, meeting basic microbial control requirements.
Physical laboratories, routine research laboratories
Glassware, ordinary samples, experimental consumables circulation and disinfection.
Daily pre-treatment of sterile pharmaceuticals / sterile instrument workshops
Combined with 75% alcohol wiping for daily basic disinfection. It cannot be used alone as final sterilization. It needs to be regularly combined with VHP fumigation.
Unsuitable scenarios
Materials stacked multiple layers, materials with many folds and pores; In high-risk spore areas, only ultraviolet cannot achieve sterility.
II. FFU laminar flow self-purification blowing (exclusive physical dust control and bacteria inhibition for laminar flow transfer windows) Applicable scenarios
High-grade clean areas (hundreds of thousands of particles, tens of thousands of particles): Semiconductor, chip, and precision optical workshops
The control of dust particles is strict. Unidirectional flow continuously removes floating dust and suspended bacteria, preventing external particles from contaminating the high-cleanliness rooms.
Sterile raw drug products, implantable medical devices clean areas
At the same time, control of aerosols and floating dust is also carried out to reduce the risk of cross-contamination.
Cell culture rooms, ordinary microbiology laboratories
Reduce floating microorganisms in the box to avoid aerosol diffusion when opening the box.
Precision testing laboratories, measurement rooms
Prevent the influence of micro-particles on test accuracy.
Inappropriate scenarios
Ten thousand-level simple clean workshops, scenarios with only simple material transfer, no need for laminar flow function.
III. Dry dust wiping, clean compressed air blowing (preliminary physical dust removal, auxiliary disinfection) Applicable scenarios
Machine processing, injection molding, and hardware supporting clean workshop
The surface of the workpieces is full of dust. Before transportation, it is necessary to blow and remove the floating dust to reduce the microbial count.
Materials with cartons and foam packaging are transported
After removing the outer packaging in the outer area, blowing is carried out to avoid a large amount of dust being brought into the transfer window.
Daily cleaning for all industries per shift
Wiping the box body, sealing strips, and observation window, removing accumulated dust to avoid blocking ultraviolet rays and creating disinfection dead zones.
High-dust food and plastic packaging production line supporting transfer windows.
Unsuitable scenarios
Materials with oil stains and sticky stains, dry cleaning alone cannot thoroughly clean them, and must be wiped with chemical disinfectant solutions.
Four. Ozone disinfection (regular deep physical disinfection, not every day routine) Applicable scenarios
Small and medium-sized food factories, ordinary purification workshops without VHP equipment, conduct deep cavity sterilization once a week.
Emergency comprehensive disinfection after material leakage and large-scale contamination of the box.
Unsuitable scenarios
Aseptic pharmaceuticals, Class III aseptic medical devices GMP workshops; cannot be used daily, long-term oxidation and aging of rubber sealing strips.
V. Dry heat and high-temperature disinfection (special for niche use, rarely used in daily operations) Applicable scenarios
A dedicated transfer window specifically for transporting stainless steel molds, metal tooling, and heat-resistant glass instruments.
Inappropriate scenarios
Most standard transfer windows (equipped with silicone sealing strips, UV lamps, and plastic accessories) will accelerate the aging and failure of the sealing components due to high temperatures.
Industry-specific streamlined matching scenarios
100,000 / 10,000 grade ordinary electronics factory: Dry dust removal and wiping + UV irradiation
10,000 / 100 grade precision electronics workshop: Clean air blowing + laminar self-cleaning + UV
Food and daily chemical clean workshop: Dry wiping and dust removal + UV; Weekly ozone deep disinfection
Aseptic pharmaceutical / aseptic instrument workshop: Dry wiping + UV daily disinfection, monthly VHP fumigation for deep sterilization
Hospital laboratory, general operating room: Dust-free dry wiping + short-term UV
Regular biological laboratory: Suction dust removal + laminar self-cleaning + UV, high-risk samples supplemented with chemical disinfection