Pre-assembled with Multi-contaminant Unisorb cartridges and P100 prefilters and ready to use. Eliminates assembly mistakes and the need for cleaning and maintenance. ‚àö¬¥_Features rolled edges, a broad sealing flange, chin port and forward angled nosepiece for a secure, comfortable fit. Ideal for extremely dusty or dirty applications where cleaning after use is difficult, including paint and pesticide spraying, welding, primary metals, automotive and chemical operations. Available in Medium and Large. Wilson brand.