Re-usable filters
Illustrated Guide to Ventilation (BG 2/2009), compiled by Kevin Pennycook and published by BSRIA in 2009, states: ‘In certain applications, non-disposable filters are preferable because of high contaminant concentrations. High dust-loads can require regular filter changes, or the use of a foam filter which can easily be removed and cleaned. Re-usable filters are often used in kitchens to trap grease and prevent it building up in ductwork. Metal filters are non-flammable, heat conducting and can act as flame-arresters. Mesh filters are coarse panel filters made of several layers of wire mesh that can be coated with oil to improve the dust collection and holding ability. Foam and metal mesh filters both work on the straining filtration principle, and tend to be classified as EU1 or EU2. Both types are cleaned in warm soapy water and re-coated with oil if required. The ability to re-use the filters means that they are often installed where normal fibre panel filters are unsuitable, such as in mesh filters above grilles in kitchens. Metal mesh filters are not oil-coated when installed in kitchen cooking extract systems.’
--BSRIA
[edit] Related articles on Designing Buildings
Featured articles
Check out some of the best features and news from Designing Buildings as well as key stories from around the web.
CIOB celebrates positive Ofsted report.
The Building Safety Regulator announces a call for evidence.
Government approach could undermine delivery and regeneration.
World's first mass timber data centre.
The overlooked environmental aspect of data centre development.
Introduction to radon awareness
New technical information sheet published by CIOB.
Updated supplier guide can help electrical contractors engage with NHP.
CIAT confirm the winners of the 2026 architectural technology awards.
Government launches a one stop shop for flood preparedness.
Sir Edwin Lutyens: Britain's greatest architect? Book review.
CIOB publishes free template to help assess and manage risks.
ECA's reflections on Party Conference season
Burnham wants to be confident of winning before asking for a fresh mandate.
New Chief Construction and Scientific Adviser
Sergio Cavalaro, Professor of Infrastructure Systems at Loughborough University.