What are the advantages and disadvantages of vertical flow tables?

Vertical flow table has the following advantages and disadvantages:
advantage
High cleanliness: The use of high-efficiency filters can filter dust, microorganisms, and other impurities in the air. For example, a vertical flow table of a high-efficiency filter on 0.12-micron dust particles with an interception efficiency of up to 99.9999% can ensure the working area's air cleanliness and sterility.
Protect the operator: The airflow is blown vertically down from the top to the working area, and then discharged or returned from the bottom, which can isolate the harmful gases, aerosols, and other pollutants generated during the operation from the operator and protect the operator from injury, suitable for medical, pharmaceutical, electronics and other industries.
Easy to operate: usually equipped with an operation panel and control system, the operator can easily control the operation of the workbench and parameter Settings, such as wind speed regulation. Some vertical flow table also has a humanized design, such as a germicidal lamp, lamp independent control, movable door that can be positioned arbitrarily, etc., to improve the ease of operation.
Flexible combination: Part of the vertical flow table is particularly suitable for assembly into a super-clean production line, which can be arranged as a single set according to the process needs, or multiple sets can be connected in series to form a 100-level assembly line.
Energy saving and environmental protection: The use of low-energy fans and high-efficiency filters, low operating costs, while not producing noise and pollution, in line with ecological requirements.
shortcoming
High price: this belongs to high-tech equipment, research and development, production and manufacturing processes require high technical and cost input, so the price is usually higher than an ordinary workbench, and for some small enterprises and laboratories may be unaffordable.
High maintenance costs: its filters and fans need regular replacement and maintenance to ensure the performance and cleanliness of the workbench. Maintenance is often performed by professionals, which increases the cost and difficulty of maintenance.
Large footprint: usually needs a larger space to install and operate, its structure includes the upper air supply body, the lower work surface, etc., and the overall volume is larger, for some limited space laboratories or places may cause certain problems.
Large noise: the fan is usually located at the top, which may produce a large noise during operation, although some products use low-noise fans and other technologies to reduce noise, compared with the horizontal flow table, its noise level may still be high, and long-term work next to it may have a certain impact on the operator's hearing.