The Gas Filter A2B2 features a standard connection thread RD401/7" and is designed in accordance with EN 148-1 for seamless integration. CleanAIR canister filters provide an extensive range suitable for diverse industrial applications, pharmaceutical industries, laboratories, and agriculture. These filters ensure compatibility and ease of use with various respiratory protection systems, offering reliable performance to enhance safety across a spectrum of work environments. Elevate your respiratory protection with the versatile and dependable CleanAIR canister filters. Features and Benefits Connection thread RD401/7" EN 148-1 standard Versatile industry applications