Adjustable Ventilation System: Equipped with a powerful centrifugal fan, the laminar flow hood features vertical airflow to improve exhaust efficiency. With a stepless speed knob, airflow can be adjusted up to 0.45 m/s, reducing inhalation of fumes Efficient Cleaning: This portable clean room features a HEPA-14 filtration and a G1 pre-filter, delivering a 99.997% filtration rate to meet ISO 5 standards. Please replace the filter every 23 months to maintain ventilation efficiency Solid & Liquid-Resistant Steel: The flow hood features a powder-coated cold-rolled steel frame with a 304 stainless steel base, providing durability, acids, alkalis, impact, and wear resistance. It reduces the contamination for high-intensity labs Optimized Experience: The vertical laminar flow hoods front panel features a transparent acrylic viewing window, allowing real-time observation. The bright LED light provides clear visibility