BREATHE EASY & STAY PROTECTED: With a minimum laboratory protection factor of 50, our filters provide top-notch protection against dusts from hard and softwoods, ply, MDF. Keep safe and focused on your project. BE PREPARED WITH SPARE FILTERS: Don't let running out of filters slow you down. Our twin pack of replacement Air/Pro filters ensures you always have spares on hand, so you can keep working without interruption. HASSLE-FREE COMPATIBILITY: Our filters are specifically designed to replace the twin filters of the Trend Airshield Pro (sold separately). It is a seamless swap over to new filters to enjoy clean, unrestricted airflow. RELIABLE FILTRATION PROTECTION: The twin filter design increases the filtration area by 400% and our Airshield Pro Filters provide 98% efficiency for reliable protection against fine nuisance dust particles. EASY TO INSTALL AND REPLACE: No complicated installation required! Our filters are easy to install and replace, saving you time and ensuring your Airshield Pro provides continuous protection from dust inhalation.