NEWS
FILTERS DON’T LAST FOREVER
T
he use of respiratory protection filters can be confusing and complicated and there are a
number of common questions and issues that arise regularly. The questions and answers in this nine-page informative booklet from 3M will briefly cover these. As well as covering what regulations
and standards govern the design and use of filters and reusable respirators, it also covers the three main type of filters. The first, particulate filters protect only against particles such as dust, mists and fumes, aerosols, smoke, mould, bacteria and so on. However, gas/vapour filters protect only against gases and vapours. There are different kinds of gas and vapour filters for different kinds of gases. While combination filters protect against both particles and gases. Different combination gas, vapour and particulate filters are used depending on the gas or vapour present in the air. So, why do you need to replace
the filters regularly? Particulate filters get clogged
up and become harder to breathe through placing an increased physiological burden on the wearer. Gas and vapour filters start to let contaminant through once their sorbents become saturated. This is called breakthrough. Important: The selection of filters must be carried out by a competent person with a full knowledge of the respiratory hazards in the workplace. Details of how each
of the three filter types works is also provided. There are many factors such as
exposure level, other controls, work rate, breathing rate etc that contribute to how long a filter lasts and when it should be
TRANSFORM WELD QUALITY
CONTROL WITH ULTIMATE PRECISION. FAST, HIGH-RESOLUTION MACRO-LEVEL WELD SEAM MEASUREMENT.
changed. A list of some indicators for when this occurs are also included. You can view this useful booklet HERE.
www.3m.co.uk/safety
OPTICAL ANALYSER INVERSE COAXIAL MACROSCOPE
VISIT
QATM.COM TO SCHEDULE A LIVE DEMO
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