{"id":14316,"date":"2026-09-23T12:48:33","date_gmt":"2026-09-23T09:48:33","guid":{"rendered":"https:\/\/www.ulpatek.com\/technologie-de-filtration\/l-air-que-nous-respirons\/"},"modified":"2026-09-29T15:58:19","modified_gmt":"2026-09-29T12:58:19","slug":"l-air-que-nous-respirons","status":"publish","type":"page","link":"https:\/\/www.ulpatek.com\/fr\/technologie-de-filtration\/l-air-que-nous-respirons\/","title":{"rendered":"L\u2019air que nous respirons"},"content":{"rendered":"

[vc_row][vc_column][vc_empty_space height=\u00a0\u00bb20″][\/vc_column][\/vc_row][vc_row][vc_column width=\u00a0\u00bb3\/4″][vc_column_text css=\u00a0\u00bb.vc_custom_1526626375164{padding-bottom: 30px !important;}\u00a0\u00bb]<\/p>\n

L\u2019air que nous respirons<\/h2>\n

[\/vc_column_text][vc_row_inner][vc_column_inner width=\u00a0\u00bb1\/2″][vc_column_text css=\u00a0\u00bb.vc_custom_1526626421616{padding-bottom: 30px !important;}\u00a0\u00bb]L\u2019air est un m\u00e9lange de gaz compos\u00e9 d\u2019environ 21\u00a0% d\u2019oxyg\u00e8ne, 78\u00a0% d\u2019azote, 1\u00a0% d\u2019argon et de traces d\u2019autres gaz. L\u2019air que nous respirons contient aussi des particules et des gaz d\u2019origine naturelle, humaine ou industrielle, comme le montre la figure. Ce qui nous int\u00e9resse ici, ce sont les particules et les gaz qui agissent sur notre sant\u00e9 ou notre confort, qui d\u00e9gradent les locaux que nous occupons ou qui alt\u00e8rent les produits et les composants que nous fabriquons.<\/p>\n

Quelle que soit son origine, un contaminant pr\u00e9sent dans l\u2019air peut \u00eatre soit un a\u00e9rosol, soit un gaz.[\/vc_column_text][\/vc_column_inner][vc_column_inner width=\u00a0\u00bb1\/2″][vc_single_image image=\u00a0\u00bb3217″ img_size=\u00a0\u00bbfull\u00a0\u00bb onclick=\u00a0\u00bblink_image\u00a0\u00bb][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=\u00a0\u00bb20″][vc_row_inner][vc_column_inner width=\u00a0\u00bb1\/3″][vc_empty_space height=\u00a0\u00bb20″][vc_single_image image=\u00a0\u00bb3218″ img_size=\u00a0\u00bbfull\u00a0\u00bb onclick=\u00a0\u00bblink_image\u00a0\u00bb][\/vc_column_inner][vc_column_inner width=\u00a0\u00bb2\/3″][vc_column_text css=\u00a0\u00bb.vc_custom_1526626642091{padding-bottom: 10px !important;}\u00a0\u00bb]<\/p>\n

Les a\u00e9rosols<\/h4>\n

[\/vc_column_text][vc_column_text]Un a\u00e9rosol est une suspension de particules solides ou liquides dans l\u2019air. La figure aide \u00e0 se repr\u00e9senter la taille des a\u00e9rosols en la comparant au diam\u00e8tre d\u2019un cheveu humain et \u00e0 la taille d\u2019autres objets. Les a\u00e9rosols couvrent une large plage de tailles, comme le montre le diagramme ci-joint des tailles relatives de particules.[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_empty_space height=\u00a0\u00bb20″][vc_row_inner][vc_column_inner width=\u00a0\u00bb1\/3″][vc_column_text css=\u00a0\u00bb.vc_custom_1526626751114{padding-bottom: 10px !important;}\u00a0\u00bb]<\/p>\n

Mesurer la contamination particulaire<\/h4>\n

[\/vc_column_text][vc_column_text]La concentration des particules atmosph\u00e9riques de diff\u00e9rentes tailles se mesure g\u00e9n\u00e9ralement en masse ou en nombre. Une troisi\u00e8me m\u00e9thode, fond\u00e9e sur la surface projet\u00e9e (l\u2019ombre) des particules, peut servir \u00e0 mesurer de fa\u00e7on relative la fraction salissante des poussi\u00e8res atmosph\u00e9riques. Les m\u00e9thodes d\u2019essai des filtres reposent sur ces trois techniques.[\/vc_column_text][\/vc_column_inner][vc_column_inner width=\u00a0\u00bb2\/3″][vc_single_image image=\u00a0\u00bb3219″ img_size=\u00a0\u00bbfull\u00a0\u00bb onclick=\u00a0\u00bblink_image\u00a0\u00bb css=\u00a0\u00bb.vc_custom_1516186262554{padding-top: 20px !important;}\u00a0\u00bb][\/vc_column_inner][\/vc_row_inner][\/vc_column][vc_column width=\u00a0\u00bb1\/4″][vc_widget_sidebar sidebar_id=\u00a0\u00bbproject-sidebar\u00a0\u00bb][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

[vc_row][vc_column][vc_empty_space height=\u00a0\u00bb20″][\/vc_column][\/vc_row][vc_row][vc_column width=\u00a0\u00bb3\/4″][vc_column_text css=\u00a0\u00bb.vc_custom_1526626375164{padding-bottom: 30px !important;}\u00a0\u00bb] L\u2019air que nous respirons [\/vc_column_text][vc_row_inner][vc_column_inner width=\u00a0\u00bb1\/2″][vc_column_text css=\u00a0\u00bb.vc_custom_1526626421616{padding-bottom: 30px !important;}\u00a0\u00bb]L\u2019air est un m\u00e9lange de gaz compos\u00e9 d\u2019environ 21\u00a0% d\u2019oxyg\u00e8ne, 78\u00a0% d\u2019azote, 1\u00a0% d\u2019argon et de… Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":11060,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_exactmetrics_skip_tracking":false,"footnotes":""},"class_list":["post-14316","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ulpatek.com\/fr\/wp-json\/wp\/v2\/pages\/14316","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ulpatek.com\/fr\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ulpatek.com\/fr\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ulpatek.com\/fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ulpatek.com\/fr\/wp-json\/wp\/v2\/comments?post=14316"}],"version-history":[{"count":0,"href":"https:\/\/www.ulpatek.com\/fr\/wp-json\/wp\/v2\/pages\/14316\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.ulpatek.com\/fr\/wp-json\/wp\/v2\/pages\/11060"}],"wp:attachment":[{"href":"https:\/\/www.ulpatek.com\/fr\/wp-json\/wp\/v2\/media?parent=14316"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}