24-Hour Ventilation Air Intake Filter 10.5cm - Set of 5 Introducing a new set of 5 powerful filters! These are high-performance filters for use in the air intake vents of 24-hour ventilation systems. With a diameter of 10.5 cm and a fine mesh structure, they effectively capture fine particles and dust in the air. These filters are essential for creating a healthy living environment. When using air conditioners or ventilation systems, the air intake vents are important for bringing in outside air, but the presence of filters is essential to ensure clean air at the same time. The powerful filters are made of high-quality materials and are also durable. They are provided in a set of 5, so you don't have to worry even if you need to replace them frequently. Furthermore, they are easy to install and simple to maintain. By using these filters, the air in your home or office will become cleaner, creating a more comfortable environment. They effectively remove pollen, dust, and fungi from the air, which can also help alleviate allergy symptoms. Please try the Powerful Filter Set of 5.