Compared with conventional fixed bag filters, the new modular bag‑type air filters adopt standardized modular design and support multi‑size customization. They fit air‑handling units and fresh‑air ducts of various models without reconstructing existing equipment structures, greatly cutting construction costs and shortening project timelines for factory purification retrofits. The frame is made of lightweight galvanized steel plate with good corrosion resistance and deformation resistance. Its detachable and replaceable filter‑bag structure eliminates full‑unit replacement; routine maintenance can be completed simply by swapping filter bags, significantly lowering later‑stage maintenance barriers and operating expenses for small‑and‑medium enterprises.
In terms of filtration performance, the product complies strictly with international filtration standard EN 1822, covering four common grades: F5, F6, F7 and F8, to precisely match purification requirements across diverse scenarios. F5 and F6 grades are suitable for general‑purpose factories, shopping malls and office‑building fresh‑air systems, efficiently removing coarse dust, insects and flocculent contaminants. F7 and F8 grades serve production sites requiring moderate air cleanliness, such as precision machinery, packaging & printing and food‑processing workshops. They capture fine suspended particulates, improve indoor production conditions and prevent product contamination and manufacturing‑accuracy deviations caused by dust. Benefiting from its low‑resistance breathable structure, the filter maintains stable filtration efficiency under high‑air‑volume operating conditions, avoiding air‑volume decay and premature clogging.
According to market sales statistics, sales volume of modular bag‑type air filters has surged by 45 % year‑on‑year in the past six months. Procurement from small‑and‑medium‑sized factory retrofits and commercial fresh‑air system projects accounts for more than 70 % of total sales. Many purification engineering firms comment that this product perfectly meets lightweight, low‑cost renovation demands and resolves long‑standing pain points of equipment‑selection difficulties and complex maintenance for small‑and‑medium‑scale projects. Looking ahead, as ventilation‑purification standards for public spaces improve and environmental‑compliance rectification becomes routine for SMEs, modular, versatile and maintainable bag air filters will keep penetrating multi‑segment markets and become staple equipment within the ventilation‑purification industry.
