As a device integrating air purification and disinfection functions, the spray disinfection air shower plays a crucial role in the clean workshop of medical devices. Its core lies in the synergistic effect of atomized disinfectants and high-speed air flow to remove microorganisms and particles on the surface of personnel and items, ensuring that the clean workshop complies with GMP (Good Manufacturing Practice for Pharmaceutical Products) and other regulatory requirements. The specific application scenarios are as follows I. Disinfection and purification of personnel entering the clean workshop This is the most fundamental and frequently used application scenario for spray disinfection air shower rooms. The clean workshop for medical devices has extremely high requirements for the cleanliness of personnel. The clothes and skin surfaces of personnel are prone to carrying external microorganisms (such as bacteria and fungi) and dust particles. If they enter directly, they will contaminate the production environment and affect the sterility of medical devices (such as syringes and implantable devices). ​ Application process Personnel need to first change into clean suits and shoe covers. After entering the spray disinfection air shower room, the equipment automatically starts the atomization system to atomize disinfectants that meet medical standards (such as hydrogen

The spray disinfection air shower room has dual functions: spray sterilization and air shower dust removal. It can meet the strict requirements of the biomedicine field for a sterile and clean environment. The specific application scenarios are as follows. Disinfection for personnel access in biopharmaceutical production workshops In the production workshops of vaccines, antibody drugs, biological preparations, etc., personnel need to pass through the spray disinfection air shower room before entering the clean area (such as 10,000-level and 100-level clean workshops). The equipment first sprays disinfectants such as hydrogen peroxide and hypochlorous acid that meet biomedical standards through atomizing nozzles to disinfect the entire body of personnel (including protective clothing, shoe covers, and the gaps between gloves) in a 360°, all-round manner, killing bacteria, viruses and other microorganisms that may be carried on the body surface. Subsequently, the high-speed air shower is activated to remove the disinfectant droplets and fine dust remaining on the body surface after disinfection, preventing the disinfectant residue from contaminating the production raw materials. At the same time, it avoids the entry of external particles into the clean workshop, ensuring that the drug production meets the requirements of GMP (Good Manufacturing Practice for Drugs). Disinfection of

The application life of high-efficiency filters in livestock farms is affected by factors such as environmental conditions, maintenance level and filter type. Generally, it is recommended to replace them every 6 months to 2 years. The following is the specific analysis: I. Core Basis and Industry Standards                                     According to the “Technical Specification for Air Filtration System in Pig Farms” (NY/T 3883-2021), the mandatory replacement conditions for high-efficiency filters (H13 grade) are: Pressure difference ≥150Pa (2 to 3 times the initial resistance); It has been used for 12 months. This standard is applicable to high biosecurity areas such as breeding pig houses and piglet nursery houses. For instance, the actual measurement data from Muyuan Group shows that in an environment with a PM2.5 concentration greater than 75μg/m³, the effective retention period of high-efficiency filters can be shortened to 8 to 10 months. Ii. Key Influencing Factors and Differences Biosafety level Low-biosafety farms (with pig farms within a 3-kilometer radius) : It is recommended to replace them every six months to reduce the risk of virus transmission. High biosafety sites (independent sites) : The

The core precautions for the application of coarse air filters in livestock farms mainly focus on four dimensions: selection and compatibility, installation and sealing, maintenance and management, and environmental compatibility, to prevent impurity leakage, equipment wear and tear, and purification failure. Selection and compatibility: Meet the scene requirements of livestock farms Match the parameters of the ventilation system: Select filters based on the designed ventilation volume and wind speed of the breeding house to avoid a sudden increase in resistance due to air volume overload or insufficient air volume affecting the purification effect. Priority environmental resistant materials: Select moisture-proof and corrosion-resistant filter materials (such as polyester fiber, nylon), which are suitable for the high humidity and slightly corrosive ammonia environment in livestock farms. The filtration efficiency is suitable for the following scenarios: For brooding houses and farrowing houses, grades G3-G4 should be selected. For ordinary fattening houses, grades G2-G3 can be chosen. There is no need to pursue overly high efficiency to avoid energy waste. Installation seal: Prevent air short circuit Ensure proper installation: The gap between the filter and the frame should be less than 1mm. Sealing strips can be added to prevent dusty air from bypassing the filter

The key points for testing the sealing performance of transfer Windows revolve around the core of “no leakage and stable pressure difference”, covering three major links: preparation, testing and judgment. Specifically, they are as follows: I. Preparations Before Testing Environmental requirements: The cleanliness of the detection area shall not be lower than that of the usage environment of the transfer window, and there shall be no obvious air flow interference (wind speed ≤0.2m/s). Equipment calibration: The pressure gauge, soap liquid detector, dust particle counter and other equipment must be within their validity period and meet the accuracy requirements (the error of the pressure gauge is ≤±2Pa). Transfer window status: Close all door bodies and lock them, ensuring that the sealing strips are undamaged, installed properly, and the interior is clear and unobstructed. Ii. Core Testing Items Pressure attenuation method detection: Pressurize the transfer window to 500Pa, then start timing after the gas source is turned off. The pressure attenuation value within 30 minutes should be ≤50Pa (there may be differences among different standards, so follow the usage scenario). Leakage point detection: Evenly apply soap solution to the gaps of the door body, the interface of the frame, and around the

The core of the daily inspection of transfer Windows is “quickly identify key components + verify the effectiveness of sealing”, ensuring there are no functional defects before each use. The specific methods revolve around the four core aspects of “sealing, door locks, disinfection equipment, and status identification”. Sealing performance inspection Sealing performance inspection: Inspect whether the sealing strip is intact, undamaged, properly attached, not deformed, or showing signs of aging and cracking. Inspect for the absence of foreign objects (such as dust or material residues) on the bonding surface. Gap inspection: Use a 0.1mm thick feeler gauge to inspect the junction between the door body and box body, moving evenly along the circumference. The gap passes inspection if the gauge cannot be inserted or insertion depth is less than 5mm. Alternatively, inspect for light leakage by closing both doors, turning on a flashlight on one side, and checking from the other side. Pressure difference auxiliary inspection: If the pressure difference in the clean room fluctuates abnormally and other causes are ruled out, inspect the seal of the transfer window for possible failure. Inspection of door locks and door bodies Switch test: Open both doors respectively to confirm that the door

As a key purification device in food clean workshops, the air shower room’s core function is to remove dust, hair and other contaminants from the surfaces of personnel and materials through strong air spray, prevent external pollution sources from entering the clean area, ensure the cleanliness of the food production environment, and thereby maintain food quality and safety. Its specific applications can be carried out in the following multiple aspects: Application scenarios and core functions Personnel must undergo purification before entering the clean area The clothes, hair and skin surfaces of food production personnel are prone to carrying dust, microorganisms and other contaminants, which is one of the main sources of pollution in the workshop. Air showers are usually set up at the junction of the clean area and the non-clean area (such as between the changing room and the production workshop), and personnel must pass through the air shower to enter the core production area. During the air shower process, high-speed air flow (usually with a wind speed of ≥25m/s) is sprayed from multiple angles, which can effectively blow off dust particles adhering to work clothes, shoes, hats and hair, while reducing the number of microorganisms carried by personnel

In the food processing process, air, as an indispensable environmental element, its cleanliness is directly related to the safety and quality of food. Dust, microorganisms, pollen and other pollutants suspended in the air, once they come into contact with food raw materials or finished products, are very likely to cause food contamination, leading to product deterioration, shortened shelf life, and even health problems for consumers. Medium-efficiency air filters, as key equipment in air purification systems, play an irreplaceable role in the air purification process of food factories with their precise filtration performance, building a “protective wall” at the air level for safe food processing. I. Core Filtration Performance of Medium-Efficiency Air Filters Medium-efficiency air filters are air filtration devices with a filtration efficiency of 20% to 80% for particles with a diameter of 1.0 micrometers (μm) or larger, based on ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) standards. Their filtration capability is greater than primary filters but less than high-efficiency filters, making them the ‘intermediate defense line’ in air purification systems. From the perspective of filtration principles, medium-efficiency air filters mainly capture pollutants using inertial collision, interception, and diffusion: Inertial collision means larger particles like dust and fibers

In the clean workshops of the pharmaceutical industry, the pleated high-efficiency filter, as the terminal core equipment of the air purification system, is directly related to the sterility, purity and safety of drug production, and is a key facility to meet the requirements of GMP (Good Manufacturing Practice for Drugs). Its core applications revolve around the core demands of pollution prevention and control in pharmaceutical processes, environmental cleanliness guarantee, and compliance compliance compliance, as follows: I. Core Function Positioning: The “Sterile Barrier” for Pharmaceutical Clean Environments The pharmaceutical industry’s requirements for clean environments are not limited to particulate matter control; more importantly, they focus on the precise prevention and control of microbial (bacterial, fungal, viral, etc.) contamination. The high-efficiency filter with separators is located at the terminal of the three-stage filtration process of “coarse → medium → high efficiency”, responsible for intercepting the residual particles of 0.3μm and above (filtration efficiency ≥99.97%, HEPA standard) or 0.12μm ultrafine particles (ULPA ultra-high efficiency standard, efficiency ≥99.999%) after the previous stage of filtration. At the same time, it efficiently intercepts microorganisms attached to particulate matter, ensuring that the air sent into the production area meets the preset cleanliness levels (such as Class A,

As the core terminal equipment of the air purification system in clean workshops, the high-efficiency filter with separators plays an irreplaceable role in controlling the air quality. It ensures the stability of production processes and product quality by offering highly efficient particulate interception. Its main applications focus on cleanroom construction, meeting process requirements, and preventing pollution risks, as follows: I. Core Function Positioning: The “Last Line of Defense” for Clean EnvironmentsThe air purification system in a cleanroom usually uses three filtration stages: “coarse filtration → medium filtration → high efficiency filtration”. The high-efficiency filter with separators is at the last stage. It intercepts the remaining fine particles after previous filtration, including dust, pollen, bacteria, and viruses. This ensures that the air entering the room meets preset cleanliness standards. Its filtration rate for particles 0.3μm and above is over 99.97% (in line with HEPA standards). Some ultra-high-efficiency models (ULPA) exceed 99.999% filtration for 0.12μm particles. It is essential for achieving different clean grades such as Class 100, Class 1,000, and Class 10,000. Ii. Core Applications by Scenario The electronics manufacturing industry demands extremely high environmental cleanliness. Tiny particles can adhere to products like chips, semiconductor devices, and circuit boards. These particles

I. General Maintenance and Care Contents (1) Environmental cleaning and maintenance Regularly clean the dust and debris around the equipment and in the installation area to prevent the accumulation of pollutants that may affect the air intake efficiency or be sucked into the equipment. Keep the floor, walls and ceiling of the clean room clean to reduce the content of environmental particulate matter and lower the load on the filters. Do not place any obstacles near the equipment’s air outlet to ensure smooth air flow and avoid local air flow disorder. (II) Filter Maintenance Regular inspection Regularly observe whether there is obvious dust accumulation, damage or air leakage on the surface of the filter (the cleanliness test data can be used to assist in judgment. If the cleanliness suddenly drops, the filter should be inspected as a priority). For high-efficiency filters (HEPA/ULPA), regularly test their pressure difference (initial resistance and final resistance). When the pressure difference reaches 1.2 to 1.5 times the final resistance, they need to be replaced in a timely manner. Replacement specification When replacing, the operation should be carried out in a clean environment to prevent the new filter from being contaminated. Disassemble and install strictly in

First, the definition and core positioning are different Laminar flow device In a broad sense, it is purification equipment that generates uniform, directional “laminar airflow” to prevent pollutant diffusion, using various forms based on the technical principle of “laminar purification.” In a narrow sense, it can refer to the components of laminar flow purification systems that are fixedly installed on the top, side walls and other positions of clean rooms and have a high degree of integration with the building (such as ceiling-mounted laminar flow hoods, vertical laminar flow supply air systems, etc.). FFU laminar flow unit FFU is the abbreviation of “Fan Filter Unit”, which is a specific type of laminar flow device. It specifically refers to a modular and independently operable laminar flow purification unit with its own fan and filter (usually a high-efficiency filter HEPA or an ultra-high-efficiency filter ULPA). The core positioning is a “modular purification terminal”, which does not rely on a centralized air supply system and can complete the entire process of air flow intake, pressurization, filtration and exhaust by itself. Second, moving from core positioning to design, the structural and system dependencies are different. It is usually of non-modular structure and relies on