The paper‑separator HEPA filter is a classic type of separator‑style high‑efficiency filter. It adopts premium ultra‑fine glass‑fiber filter paper as filtration medium, uses water‑resistant hard paper boards as spacer supports, and is formed via precision gluing technology. Different from gasket‑sealed mini‑pleat filters, its unique spacer‑supported structure delivers excellent high‑temperature resistance and anti‑deformation performance. The upgraded new‑generation paper‑separator HEPA filter optimizes spacer pitch and filter‑paper pleat density. While maintaining H13 and H14 high‑efficiency filtration grades, it improves air‑flow capacity and heat resistance. It can operate continuously under 80 °C working conditions and withstand short‑term temperature up to 100 °C, perfectly fitting various clean production lines for high‑temperature baking, hot‑air circulation and heat‑treatment processes.

Compared with metal‑separator HEPA filters, paper‑separator versions show remarkable cost‑performance advantages. With identical filtration efficiency and temperature resistance, its equipment cost is reduced by approximately 30 %. It is lighter in weight, easy to install and free from metal corrosion risks, suitable for mass engineering matching. Furthermore, it owns high dust‑holding capacity and unobstructed air channels, maintaining stable pressure drop during long‑term operation with low risk of local dust clogging and extended service life, which effectively cuts maintenance and replacement costs for purification equipment in high‑temperature workshops. In terms of filtration performance, its removal efficiency for 0.3 μm fine particulates reaches above 99.97 %, effectively capturing airborne dust, fine particles and contaminants to satisfy terminal‑filtration requirements for ISO 5 and ISO 6 clean‑room classifications.

At present, this upgraded paper‑separator HEPA filter has been widely adopted in multiple high‑temperature clean sectors including new‑energy lithium‑battery production, automotive spraying, precision‑hardware heat treatment and food baking. Thanks to reliable condition adaptability and high cost‑performance, it stands as the preferred option for high‑temperature purification projects. Industry statistics demonstrate that procurement volume of paper‑separator HEPA filters for high‑temperature industrial clean scenarios rose by 52 % year‑on‑year over the past twelve months, with continuously growing market recognition. According to industry specialists, paper‑separator HEPA filters compensate for application limitations of conventional HEPA filters by virtue of distinctive working‑condition adaptability. They will further penetrate the special‑condition purification market and act as indispensable core filtration components within the industrial clean‑tech sector.