Biological Safety Cabinet 한글자막

Summary

The CHC Lab Biological Safety Cabinet is crucial for bio-experiments, ensuring researcher safety by providing clean air through HEPA filters and preventing contaminated air escape. It offers three levels of protection: researcher, sample, and environment. Certified by NSF 49 and EN 12469, it operates with a blower that recirculates 70% of air through HEPA filters and exhausts 30% outside. The cabinet's laminar airflow prevents cross-contamination, and its microprocessor system with LCD display monitors air velocity, ensuring safety with alarms for abnormal conditions or sash levels.

Takeaways

• 🛡️ The CHC Lab Biological Safety Cabinet is crucial for bio experiments, providing protection from contaminated air.
• 💨 It ensures a constant supply of clean air to the work surface through HEPA filters, preventing the escape of contaminants.
• 👨‍🔬 The cabinet offers three types of protection: researcher safety, sample safety, and environmental safety.
• 🌐 It is certified by international standards NSF 49 and EN 12469, indicating its compliance with global safety requirements.
• 🔄 The blower in the cabinet recirculates 70% of the air through the supply HEPA filter, while 30% is exhausted outside through another HEPA filter.
• 🌿 The 30% exhausted air helps protect the environment by filtering contaminants before release.
• 🔄 The air inside the chamber is evenly distributed to prevent cross-contamination between samples through a laminar flow.
• 🚫 An air curtain formed at the front of the cabinet protects the researcher by creating a barrier against contaminants.
• 🔔 The microprocessor system with an LCD digital display monitors and controls the cabinet's air velocity and other functions.
• ⚠️ An air velocity sensor alerts the researcher if the air velocity falls outside the standard range, ensuring safety.
• 🚪 A sash alarm is activated if the sash level is not at the appropriate level, assisting in safe and proper use of the cabinet.

Q & A

What is the primary function of a biological safety cabinet?

The primary function of a biological safety cabinet is to protect the researcher from contaminated air by supplying clean air constantly to the work surface and preventing contaminated air from escaping.

How does a biological safety cabinet provide protection to the researcher, samples, and environment?

It protects the researcher by forming an air curtain, ensures sample safety by inhaling room air before it reaches the samples, and safeguards the environment by exhausting 30% of the air outside through an HEPA filter.

What are the international standards that a CHC Lab biological safety cabinet is certified to?

CHC Lab biological safety cabinets are certified to international standards NSF 49 and EN 12469.

How does the air circulation work in a CHC Lab biological safety cabinet?

The blower operates to draw room air into the cabinet, which then moves to the plenum and rises to the blower. A portion of this air is recirculated through a supply HEPA filter, while 30% is exhausted outside through an exhaust HEPA filter.

What percentage of the air is recirculated and exhausted in a CHC Lab biological safety cabinet?

70% of the air is recirculated to the chamber through the supply HEPA filter, and 30% is exhausted outside through the exhaust HEPA filter.

What is the purpose of the laminar flow in the cabinet?

The laminar flow ensures even distribution of air around the work surface, which helps prevent cross-contamination between samples.

How does the air curtain protect the researcher in a biological safety cabinet?

The air curtain is formed at the front space of the cabinet, which helps prevent any contaminants from reaching the researcher.

What is the role of the intake grill in the safety cabinet?

The intake grill protects the samples by inhaling room air before it reaches the samples, ensuring that the air in contact with the samples is clean.

What is the function of the microprocessor system with LCD digital display in a CHC Lab biological safety cabinet?

The microprocessor system operates and monitors the cabinet, with an air velocity sensor that triggers an alarm and message on the LCD display if the air velocity is outside the standard range.

What is the purpose of the sash alarm in a biological safety cabinet?

The sash alarm is activated when the sash level is out of the appropriate level, alerting the researcher to adjust it for safe and proper use of the cabinet.

How does the CHC Lab biological safety cabinet ensure that the air velocity remains at a safe and standard level?

The air velocity is monitored by a sensor located inside the exhaust damper. If the measured value is under or over the standard, an alarm and message are displayed on the monitor screen.