{"id":11827,"date":"2026-06-16T15:30:42","date_gmt":"2026-06-16T12:30:42","guid":{"rendered":"https:\/\/efsan.com\/?post_type=avada_faq&#038;p=11827"},"modified":"2026-06-16T15:30:42","modified_gmt":"2026-06-16T12:30:42","slug":"we-have-a-t1-class-gas-e-g-acetone-ait-465c-in-our-facility-but-we-have-a-t4-certified-ex-proof-fan-on-hand-can-we-use-this-fan","status":"publish","type":"avada_faq","link":"https:\/\/efsan.com\/en\/faqs\/we-have-a-t1-class-gas-e-g-acetone-ait-465c-in-our-facility-but-we-have-a-t4-certified-ex-proof-fan-on-hand-can-we-use-this-fan\/","title":{"rendered":"We have a T1 class gas (e.g., Acetone, AIT: 465\u00b0C) in our facility, but we have a T4 certified ex-proof fan on hand. Can we use this fan?"},"content":{"rendered":"<p>Yes, you can. T4 class equipment guarantees that the surface temperature will rise to a maximum of <strong>135\u00b0C<\/strong>. Equipment with a higher T-number (T4) is safe for more gas groups. Since the gas in your system ignites at <strong>465\u00b0C<\/strong>, the device is completely safe, and T4 hierarchically covers T1.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Yes, you can. T4 class equipment guarantees that the surface  [&#8230;]<\/p>\n","protected":false},"author":4,"featured_media":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"faq_category":[503],"class_list":["post-11827","avada_faq","type-avada_faq","status-publish","format-standard","hentry","faq_category-atex-en"],"_links":{"self":[{"href":"https:\/\/efsan.com\/en\/wp-json\/wp\/v2\/avada_faq\/11827","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/efsan.com\/en\/wp-json\/wp\/v2\/avada_faq"}],"about":[{"href":"https:\/\/efsan.com\/en\/wp-json\/wp\/v2\/types\/avada_faq"}],"author":[{"embeddable":true,"href":"https:\/\/efsan.com\/en\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/efsan.com\/en\/wp-json\/wp\/v2\/comments?post=11827"}],"version-history":[{"count":2,"href":"https:\/\/efsan.com\/en\/wp-json\/wp\/v2\/avada_faq\/11827\/revisions"}],"predecessor-version":[{"id":11829,"href":"https:\/\/efsan.com\/en\/wp-json\/wp\/v2\/avada_faq\/11827\/revisions\/11829"}],"wp:attachment":[{"href":"https:\/\/efsan.com\/en\/wp-json\/wp\/v2\/media?parent=11827"}],"wp:term":[{"taxonomy":"faq_category","embeddable":true,"href":"https:\/\/efsan.com\/en\/wp-json\/wp\/v2\/faq_category?post=11827"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}