Phil
I am on my home ground at last.
These filters seem to be based on scrubbers which have been used to zero NOx analysers for many years.
Some appear to only remove NO2 but others also include and oxidation stage where Nitric Oxide is oxidised to Nitrogen Dioxide by an oxidant which is usually potassium permanganate. It is important to remove both NO and NO2 as NO is likely to convert to NO2, especially if it meets ozone from later printers, photocopiers etc.
Regards
Peter Fleming
07958 205920
Skype: petermfleming
-----Original Message-----
From: Air quality <[log in to unmask]> On Behalf Of Phil Mason
Sent: Thursday, 19 July 2018 15:59
To: [log in to unmask]
Subject: NO2 Filters
Hi all
Just a general enquiry gathering thoughts on the use of / performance of NO2 filters contained in whole house MVHR systems. I have a planning application for a conversion (A2 to C4 HMO - 12 rooms) entirely within an AQMA. The consultants report I got submitted recommended the above as a mitigation option.
Several possible issues spring to mind (performance, maintenance, costs, running costs both financial and in terms of energy) and probably a myriad more when I really start to think about it.
Whilst I debate whether I can make a condition "reasonable" in planning terms with the planners, I wonder in the meantime if anyone has had any experience with these?
I am being lazy, but any links to performance data or even better peer-reviewed articles examining their efficacy would be useful.
Appreciate any thoughts.
Phil Mason ¬ MSc, MIEnvSc, MCIEH, AMIOA
Environmental Consultant (Air Quality, Noise, Contaminated Land) – Infrastructure Urban Vision Partnership Ltd
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