These HEPAC filters provide 99.99% filtration of particles and aerosols at 0.3 micron and above. That means that you’re protected from dangerous fine dust, glass fiber, silica dust, welding fumes and oil aerosols that cause irreparable damage to your health. By changing filters regularly, you can stay healthy and breathe easy in your shop doing what you love. For use with the Trend Air Stealth Half Mask.

• Includes 2 filters