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Cleanroom humidity control is essential in industries where precision, sterility, and environmental control are critical, particularly in pharmaceutical manufacturing, laboratories, and research facilities. These environments are used to test, develop, and produce sensitive products, requiring stringent control over airborne particles, temperature, and humidity.
To maintain cleanliness, external air is filtered through high-efficiency HVAC systems before entering the cleanroom. In addition to particle control, cleanroom humidity control is vital to prevent microbial growth, preserve material stability, and protect sensitive equipment.
Conditions typically range from 18°C to 22°C with 40–50% RH, though exact requirements may vary by application.
In pharmaceutical and lab environments, maintaining stable humidity is integral to product quality, safety, and regulatory compliance. Fluctuations can impact chemical stability, research accuracy, and create conditions for electrostatic discharge (ESD), which can damage sensitive equipment and compromise processes.
Humidity is managed using advanced sensors, hygrometers, humidifiers, and dehumidifiers—integrated with the HVAC system and tailored to the cleanroom’s ISO classification and specific use case. Equipment is often installed in critical zones like air handling units (AHUs), ductwork, or directly in-room to maintain exact RH levels essential for pharmaceutical and laboratory standards.
Steam humidifiers are widely used for maintaining sterile, controlled environments in pharmaceutical cleanrooms, laboratories, and electronics manufacturing facilities. They produce clean, bacteria-free moisture that supports strict hygiene standards and protects sensitive materials and processes.
Both electrode and resistive steam humidifiers are suitable for these applications. Resistive models are particularly well-suited for precise relative humidity (RH) control, ideal for meeting the strict standards of GMP-regulated settings.
In electronics cleanrooms, maintaining the right humidity levels is essential, especially in winter, when pre-heated air can become overly dry. Low humidity increases the risk of electrostatic discharge (ESD), which can damage delicate components like circuit boards. Steam humidifiers help prevent this by introducing consistent, sterile moisture into the air.
Unlike adiabatic systems, steam humidifiers use heat to generate sterile steam, eliminating the risk of introducing minerals, bacteria, or other contaminants into the cleanroom environment.
Desiccant dehumidifiers are perfect for ultra-dry environments in pharmaceutical, electronics, aerospace, and defence applications. Desiccant systems can maintain RH levels as low as 0%, providing stable, precise performance regardless of external conditions, crucial for moisture-sensitive processes and compliance with strict quality standards.
Facing humidity control challenges in your cleanroom, lab, or pharmaceutical facility? Our experts can help.
Contact us via our contact form or call 01372 571 200 for specialist advice.
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