Often used in smelters, dryers, coal‑fired boilers, incinerators, kilns, and calciners. P84® is nonflammable and non‑hygroscopic, offering extended bag life in low pH applications and helps reduce differential pressure across the baghouse. The felt operates well in high‑temperature applications, against acid attacks, and is resistant to flex abrasion. Alkalis should be avoided at high temperatures when using this media. Normal maximum continuous operating temperature is 260°C / 500°F.