Working principle of secondary biosafety cabinetThe air is compressed into the static pressure box through the primary air filter on the side and the low-noise centrifugal fan, and then evenly blown out through the high-efficiency air filter to form a high-purity air curtain, removing the original natural air in the work area. The ideal high-purity space is achieved within five minutes after starting up. Adopting an adjustable air volume fan system and a rotary switch to regulate voltage, ensuring that the wind speed in the working area is always in an ideal state.

　　Biological Clean Safety CabinetIt is a local purification unit used in the fields of medicine and health, biotechnology, scientific experiments, etc. for sterile and dust-free clean environments. The shell of the second level biosafety cabinet is tightly bonded with medium fiber board to ensure long-term rust free operation. The surface is treated with electric spray coating to make it smooth and dust-free. The table is laid with stainless steel plate, and the electrical switch is a touch sensitive switch for easy use. Electronic ballasts are used for light tubes.

Maintain knowledge:

1. Generally, when the operating voltage of the fan is adjusted to the highest point after 18 months of use and still cannot reach the ideal wind speed, it indicates that the high-efficiency air filter has accumulated too much dust (the filter holes on the filter material have been basically blocked and need to be updated in a timely manner). The service life of the high-efficiency air filter is generally 18 months.

When replacing the high-efficiency air filter, attention should be paid to the correct model, specifications, and dimensions (as configured by the original manufacturer), install the device according to the direction of the arrow, and ensure that there is no leakage around the filter.

When the ideal cross-sectional wind speed cannot be achieved after normal replacement or cleaning of the primary air filter, the operating voltage of the fan should be adjusted to achieve the ideal uniform wind speed.

4. According to the actual situation, regularly remove and clean the primary filter, with a cleaning cycle of generally 3-6 months. If not cleaned for a long time, dust accumulation will lead to insufficient air intake and reduce the cleaning effect.