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		<id>https://www.designingbuildings.co.uk/w/index.php?action=history&amp;feed=atom&amp;title=Extract_ventilation</id>
		<title>Extract ventilation - Revision history</title>
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		<updated>2026-04-28T18:57:13Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Extract_ventilation&amp;diff=296397&amp;oldid=prev</id>
		<title>Designing Buildings at 08:34, 20 February 2025</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Extract_ventilation&amp;diff=296397&amp;oldid=prev"/>
				<updated>2025-02-20T08:34:44Z</updated>
		
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		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
		&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 08:34, 20 February 2025&lt;/td&gt;
		&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 21:&lt;/td&gt;
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&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Indoor air quality.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Indoor air quality.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Ventilation.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* Ventilation.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;[[Category:DCN_Definition]] [[Category:Definitions]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Designing Buildings</name></author>	</entry>

	<entry>
		<id>https://www.designingbuildings.co.uk/w/index.php?title=Extract_ventilation&amp;diff=296396&amp;oldid=prev</id>
		<title>Designing Buildings: Created page with &quot;Approved document F: Volume 1: Dwellings, 2021 edition, defines extract ventilation as: ‘The removal of air directly from an internal space or spaces to the outside. Extract ve...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.designingbuildings.co.uk/w/index.php?title=Extract_ventilation&amp;diff=296396&amp;oldid=prev"/>
				<updated>2025-02-20T08:34:28Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;Approved document F: Volume 1: Dwellings, 2021 edition, defines extract ventilation as: ‘The removal of air directly from an internal space or spaces to the outside. Extract ve...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Approved document F: Volume 1: Dwellings, 2021 edition, defines extract ventilation as: ‘The removal of air directly from an internal space or spaces to the outside. Extract ventilation may be by natural means or by mechanical means (e.g. by an extract fan or a central system).’&lt;br /&gt;
&lt;br /&gt;
See also:&lt;br /&gt;
&lt;br /&gt;
* Centralised mechanical extract ventilation&lt;br /&gt;
* Continuous mechanical extract ventilation&lt;br /&gt;
* Decentralised mechanical extract ventilation&lt;br /&gt;
* Intermittent extract ventilation&lt;br /&gt;
* Mechanical supply and extract ventilation&lt;br /&gt;
&lt;br /&gt;
= Related articles on Designing Buildings =&lt;br /&gt;
&lt;br /&gt;
* Air change rates.&lt;br /&gt;
* Air conditioning.&lt;br /&gt;
* Air infiltration.&lt;br /&gt;
* Air permeability.&lt;br /&gt;
* Approved document F.&lt;br /&gt;
* Approved documents.&lt;br /&gt;
* Building regulations.&lt;br /&gt;
* Displacement ventilation.&lt;br /&gt;
* Indoor air quality.&lt;br /&gt;
* Ventilation.&lt;/div&gt;</summary>
		<author><name>Designing Buildings</name></author>	</entry>

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