Effective protection: The 3M Paint Spray Mask 4251C offers effective and comfortable protection against organic gases and vapors (protection level A1) as well as against particles (protection level P2). For those unexpected moments: The ready-to-use mask is ideal for paint spraying tasks. It also provides reliable protection when painting with a brush or roller and during machine sanding. Protection level: A1P2. Comfortable wearing: Integrated filter elements ensure low breathing resistance, the parabolic exhalation valve reduces heat buildup, and the comfortable fit provides secure protection.