Vividair News & Articles

From monthly archives: May 2016

We are pleased to present below all posts archived in 'May 2016'. If you still can't find what you are looking for, try using the search box.

Laminar Flow Theatres: An Overview

The way in which laminar flow theatres work is, very basically, to filter the air and create a powerful, calm and uniform unidirectional airflow. They rely on fans to create air velocity, which may be downward. There can be multiple laminar flow diffusers in a single operating theatre. Any turbulence can negate the bacterial reduction and removal effect of the system, so it is very important that operating theatre personnel move around carefully and deliberately. 

Vertical laminar flow theatres consist of a laminar flow plenum, sometimes called a CALP “Complete Air Light Plenum” above the operating table through which HEPA filtered air is diffused uniformly over the patient and operating staff. This creates a sterile air zone around the patient. It is also important to validate by means of particle counts an operating theatre on a regular basis.

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ISO Compliance - The importance of regulatory bodies and updating standards

ISO standards are voluntary and difficult to enforce, though some have been adopted as part of national health, safety and environmental regulations and are thus binding. Even outside of a compulsory situation, compliance with ISO standards confers multiple benefits on a company. For example, it opens up international trade possibilities as it ensures the same quality, procedures and products will be found in different countries. It results in uniformity, enhancing efficiency and potentially saving money.

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The New ISO 14644-1 Regulations: An Overview

Revisions were made to the ISO 14644-1 and -2 regulations in November 2015, coming into effect in January 2016. Because these standards regulate the classification of airborne cleanliness, the changes impact companies in a wide range of industries – anywhere that a clean-room is utilized. In this document, we provide a comprehensive overview of the new ISO 14644-1 regulations.


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Replacing HEPA Filters: Is it time?

Removing a HEPA filter and installing a new one is a process that needs to be handled carefully to ensure the safety of workplace personnel and prevent damage to the filter. If mismanaged, it could result in exposure to high concentrations of harmful organisms. If the HEPA filter is part of a bio-safety cabinet, a full decontamination must be done using gases to neutralise the threats.

It is also possible to use a bag-in, bag-out system in some cases. This is where the old filter is removed in a sealed bag, and a new one inserted in a sealed bag. However, this needs to be set up when the filter-containing equipment is initially installed and all servicing must be carried out by trained personnel. 

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