Fume hoods are mainly used in industries with risks of chemical, biological, or dust pollution. Their core function is to discharge harmful gases, protect the safety of operators, and maintain a clean experimental environment. In scientific research and education, fume hoods are essential for a wide range of laboratory procedures, protecting users during chemical manipulations. University laboratories: Teaching experiments for majors such as chemistry, biology, and environmental science, including reagent mixing and sample digestion. Research institutes: Activities like advanced material synthesis, pharmaceutical development, and microbial culturing involve hazardous solvents or toxic agents. In the testing of food, water quality, and soil, the process involves the pretreatment of samples (such as extraction and digestion) that generates harmful gases. 2. Pharmaceutical and chemical industries In the production and research and development processes of this field, a large amount of harmful gases is continuously generated, which requires higher corrosion resistance and exhaust efficiency from fume hoods. Pharmaceutical enterprises: In drug synthesis, active pharmaceutical ingredient production, and formulation research and development, organic vapors and volatile substances of chemical intermediates need to be discharged. Chemical enterprises: Facilities for fine chemical and novel material synthesis, handling corrosive gases and toxic solvents such as methanol and acetone.

This issue is of great practical value and precisely addresses the key link of environmental control in agricultural modernization. The main function of medium-efficiency bag filters in agricultural greenhouses is to filter out impurities such as dust, pollen and mold spores in the air, providing a clean and stable air environment for crop growth, while protecting the ventilation and irrigation equipment inside the greenhouse. I. Core Function: Ensure the dual safety of the greenhouse environment and equipment Purify the air and reduce crop diseases Greenhouses are relatively closed environments. If a large number of tiny organisms such as mold spores and aphids exist in the air, it is easy to cause diseases such as powdery mildew and downy mildew. Medium-efficiency bag filters can filter out most of such impurities, directly reducing the probability of crop diseases. Protect key equipment and extend its service life If the ventilation fans, CO₂ generators, irrigation atomizing nozzles and other equipment in greenhouses are clogged with dust, it will lead to a decrease in efficiency or even malfunctions. Filters can intercept dust particles in the air, preventing them from entering the interior of the equipment and causing wear or blockage. Stabilize environmental parameters to facilitate

The automatic lifting transfer window is mainly applied in fields where there are strict requirements for air cleanliness, sterility, or isolation of material transfer. Its core function is to transfer materials between areas of different cleanliness grades or isolation areas while blocking cross-contamination of air. I. Biomedical Field This is the core application scenario of the automatic lifting transfer window, which is directly related to the quality of drug production and personnel safety. Pharmaceutical production workshop: It is used for the transfer of raw materials, semi-finished products, or packaging materials between workshops of different cleanliness levels (such as 10,000 grade and 100,000 grade), to prevent the disruption of the air pressure balance and sterile environment in the clean area during manual transfer. Biological laboratory: In a microbiology laboratory, PCR laboratory, or biosafety laboratory, transfer experimental samples, reagents, or consumables to prevent sample contamination or leakage of harmful microorganisms. Hospital clean areas: such as operating rooms, ICUs, and sterile drug preparation rooms (PIVAS), where surgical instruments, sterile drugs, or patient supplies are transferred to reduce the risk of contamination caused by personnel entry and exit. II. Food and Cosmetics Sector It is mainly used to ensure the hygiene and safety during

The core of daily maintenance for the automatic lifting transfer window lies in regular cleaning, component inspection, and functional testing to ensure its sealing performance and normal lifting function, thereby avoiding cross-contamination. I. Daily Maintenance: Basic cleaning and function confirmation Basic checks should be completed before and after daily use, with a focus on ensuring immediate safety. Surface cleaning: Wipe the inner and outer surfaces of the transfer window, the observation window, and the control panel with neutral detergent to remove stains and dust. Corrosive solvents are prohibited to prevent damage to the surface or sealing strips. Functional test: Test the lifting function according to the normal operation process to confirm that the ascending and descending processes are smooth without any lag, and it can stop precisely after reaching the position without any abnormal noise. Door lock inspection: Check the interlocking function of both side doors to ensure that when one side door is opened, the other cannot be opened to prevent direct air circulation. Ii. Weekly Maintenance: In-depth inspection of key components Every week, a detailed inspection of the core components should be carried out to prevent potential faults. Sealing rubber strip inspection: Check whether the sealing rubber strips

The installation and maintenance of high-efficiency filters with separators should focus on two core aspects: sealing performance and filtration efficiency. Any improper operation may directly lead to excessive particles in the clean area. These two links are the key to ensuring the long-term effective operation of the filter. Installation determines the initial effect, while maintenance determines the long-term stability. The following lists the core precautions, respectively, from the aspects of installation and maintenance. I. Installation Precautions: Prevent initial leakage The core objective of the installation is to ensure that there are no leakage points between the filter and the installation frame or within the filter itself. Preparations before installation: Before installation, it is necessary to check whether the primary and medium-efficiency filters in the clean room have been replaced, and whether there is no dust or debris in the ventilation ducts to avoid subsequent contamination of the HEPA. At the same time, it is necessary to check whether the packaging of the HEPA is intact, whether the filter paper is damaged or deformed, and whether the sealing glue on the frame is uniform. Sealing treatment: Special sealing materials (such as polyurethane foam glue, sealing gaskets, and liquid tank glue) must

This question directly addresses the core components of clean workshop air purification systems. Its application value is mainly reflected in three scenarios. 1. Terminal air purification: Ensure the cleanliness of the core process area This is its main application form, which directly determines the final cleanliness level of the production environment. Installation location: It is usually used as the terminal supply air outlet of the clean room, such as the high-efficiency supply air outlet on the ceiling (HEPA is often integrated in the FFU, which stands for Fan Filter Unit, as well) or the side supply air outlet. Core function: Filter the air that has been pre-treated by primary and medium-efficiency filters, with a particle retention efficiency of over 99.97% for particles ≥0.3μm, ensuring that the air sent into the core process area is clean. Typical scenarios include photolithography areas in semiconductor chip manufacturing, aseptic filling areas in pharmaceutical production, and the protection of operating tables in biological laboratories. 2. Return air and exhaust air filtration: To prevent cross-contamination and environmental emissions In addition to supplying air, the use of HEPA in return air or exhaust air systems is equally crucial, mainly for pollution control. Return air filtration: It prevents

The daily maintenance and upkeep of air showers in food factories focus on ensuring that they continuously and stably blow clean air and efficiently remove contaminants, thereby avoiding the risk of contamination in the clean area due to equipment failure. Daily maintenance should revolve around the three core actions of “cleaning, inspection, and replacement”, and can be divided into daily, weekly, and monthly maintenance according to the cycle to ensure that all key components of the equipment are covered. I. Daily Maintenance: Basic cleaning and functional inspection It should be done before and after daily use. The key is to keep the inside and outside of the equipment clean and confirm that the core functions are normal. Clean the interior of the air shower: Use a clean cloth dipped in food-grade disinfectant to wipe the floor, inner walls, door body, and infrared sensor of the air shower to remove residual dust and stains. Check the air-blowing function: Start the air shower program and confirm that the air output from both nozzles is uniform, the wind force is strong, and there is no obvious abnormal noise or no air. Check the sealing performance of the door body: Close both doors of

Dans les fermes d'élevage, les filtres à air sont des équipements essentiels pour contrôler la qualité de l'air, réduire la propagation des maladies et améliorer l'environnement d'élevage. Leur fonction principale est de filtrer la poussière, les micro-organismes (y compris les bactéries, les virus et les spores fongiques), l'ammoniac/le sulfure d'hydrogène et d'autres gaz et odeurs nocifs présents dans l'air, afin de garantir la santé du bétail et de la volaille, d'améliorer l'efficacité de la production et de réduire la pollution de l'environnement. En fonction des objectifs de filtration et des principes techniques, les filtres à air couramment utilisés dans les fermes d'élevage sont principalement classés dans les catégories suivantes : I. Classification par objet filtrant : Quatre types principaux Filtre à particules (principalement pour le dépoussiérage) Il est principalement utilisé pour éliminer les particules solides dans l'air, y compris la poussière d'aliments, les squames du bétail et de la volaille, les plumes et la poussière soulevée après le séchage du fumier, entre autres substances. Ce type de poussière irrite non seulement les voies respiratoires du bétail et de la volaille, mais adsorbe également les micro-organismes, devenant ainsi des vecteurs de transmission de maladies. Types courants Filtre à air primaire Matériau : Tissu non tissé, maille de nylon, maille métallique, papier filtre à fibres grossières. Efficacité de filtration : Pour les grosses particules ≥5μm, l'efficacité est d'environ 30%-60% (selon la méthode du poids). Scénario d'application : En tant que préfiltre, il protège les filtres à moyenne et haute efficacité suivants.

L'industrie des semi-conducteurs a des exigences extrêmement strictes en matière de salles blanches. L'objectif principal est de contrôler les paramètres clés, notamment les particules, la température, l'humidité, le débit d'air, la pression et les contaminants chimiques, afin d'éviter les défauts de fabrication des puces (tels que les courts-circuits et la diminution de la précision de la photolithographie) causés par de minuscules impuretés ou des fluctuations environnementales.