High Efficiency Filtratparticlemail: Developed with MERV 7 rating, these sieves provide better dirt and seize, ensuring cleanser air output from your dryer outlet structure Two Layer Planumberebog: The two layer polyster construction enhances sieving efficiency, capturing more particle and debris while maintaining optimal ventilation Permanent & Reusablemail: Produced from premium polyster, these sieves is constructed to last and might cleansed for repeated use, offering extended value Agreement: Direct current most dryer outlet arrangements, these sieves is ideal for easy replacement and upgrading existing particle pitfalls Strengthened Air Standaread: These MERV 7 dryer outlet sieves feature two layer polyster net to effectively entrap particle, dirt, and damaging particles, improving indoor air standard