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The traditional AC-type FFU adopts an AC constant-speed fan, featuring simple structure and low initial procurement cost, and was the mainstream configuration in early clean workshops. However, it has obvious core disadvantages: the air speed is fixed and cannot be accurately adjusted, and the cleanliness of different areas in the workshop cannot be differentially controlled; the fan has high operating noise and high energy consumption, resulting in high electricity cost during long-term operation; the fan brushes are prone to wear, with a service life of only about 20,000 hours, leading to high equipment failure rate and frequent later-stage operation and maintenance. It is only suitable for low-grade, low-requirement and temporary simple clean booth scenarios.<\/p>\n
The new-generation EC-type FFU adopts DC brushless frequency conversion technology and is currently the mainstream upgraded product in the industry. Its core technical advantages are reflected in four dimensions: first, significant energy saving, which is 30%~50% more energy-saving than AC models, and can save a large amount of electricity cost throughout the year in large-area workshops; second, accurate airflow control, supporting 0~100% stepless frequency conversion speed regulation, which can accurately match the air speed according to the cleanliness level and air change rate requirements of the workshop; third, longer service life, the brushless structure has no wear, and the continuous operation life is \u226550,000 hours, which greatly reduces the replacement frequency; fourth, lower noise, the noise can be controlled within 45dB under low air speed operation, which is suitable for high-standard clean workshops.<\/p>\n
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In terms of cleanliness stability, the EC-type FFU can uniformly calibrate air volume through an intelligent control system, ensuring consistent air speed of all units in the entire workshop, and solving the problems of large air speed deviation and uneven workshop cleanliness of AC models. At the same time, it supports zoned control, scheduled start-stop and fault warning, and is suitable for the digital management of smart clean workshops.<\/p>\n
![\"\"](\"https:\/\/www.bacintl.com\/wp-content\/uploads\/2026\/08\/\u5feb\u901f\u5377\u5e18\u95e8\u8d27\u6dcb\u5ba4\u7ed3\u6784\u8bbe\u8ba1\u4e0e\u9664\u5c18\u51c0\u5316\u6838\u5fc3\u6280\u672f\u539f\u7406-13-767x431.jpg\")
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Selection criteria: For temporary clean booths, low-grade Class 10,000 workshops and simple scenarios with limited budget, economical AC-type FFUs can be selected; for new standardized clean workshops, Class 1,000\/Class 100 high-cleanliness areas, long-term continuous production and intelligent transformation projects, EC frequency conversion FFUs must be selected, so as to offset the initial equipment price difference with long-term low energy consumption and low operation-maintenance cost.<\/p>","protected":false},"excerpt":{"rendered":"
FFUs are mainly classified into two categories: traditional AC-type FFU with AC fans and new-generation EC-type FFU with DC brushless fans. The two types differ significantly in energy consumption, service life, airflow control accuracy and operation-maintenance cost, which directly affects the long-term operating cost and cleanliness stability of clean workshops. This article makes an in-depth comparison of the core technical principles, performance parameters and applicable scenarios of the two types of FFUs, so as to provide accurate technical basis for enterprises in replacing old equipment and selecting models for new projects.<\/p>","protected":false},"author":3,"featured_media":5845,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[92],"tags":[],"class_list":["post-5844","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-technology"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts\/5844","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/comments?post=5844"}],"version-history":[{"count":2,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts\/5844\/revisions"}],"predecessor-version":[{"id":5849,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts\/5844\/revisions\/5849"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/media\/5845"}],"wp:attachment":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/media?parent=5844"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/categories?post=5844"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/tags?post=5844"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}