Unmatched mechanical filtration. Capture 99.997% of particulate matter, including wet and dry solids, dust, fibers, and liquid aerosols. Designed for all Sundström devices, it maximizes service life and reduces filter replacements. Combinable with gas filters for a fully customizable solution. Reusable and compatible with new gas filters. Use with SR 221 pre-filter for daily replacement. Strong sustainability profile, offering long service life and cost efficiency. Optimal protection against particles, regardless of air speed, humidity, or temperature.