MSA Affinity 2221 P2 Respirator with Exhalation Valve, Disposable Box of 20. Colour Coded Yellow. Effective, reliable and economical, the Flat Fold Affinity 2200 series offers effective protection against penetrating solid and liquid aerosol particles present in various work environments. Protection Class P2 Applications include machining, welding, brazing, plastering and insulation installation. Certified to AS/NZS 1716:2012.