Description Headwind HVC Carbon Filters Introducing the Headwind HVC Premium Long-Life Carbon Filters, your ultimate solution for maintaining discretion and optimizing air quality in your indoor growing space. Say goodbye to unwanted odours seeping into your home and disturbing your neighbour’s. With our premium carbon filters, even the freshest air is channelled efficiently to nurture your plants. Crafted specifically for compatibility with any centrifugal, silenced or mixed flow fans, our new line of carbon filters ensures longevity and exceptional performance in ventilation control. Each box includes 2 Velcro Prefilters for added convenience. SIZE CAPACITY CFM 100X300MM 340 m3/h 200 125X300MM 408 m3/h 240 150X300MM 595 m3/h 350 200X750MM 1360 m3/h 800 250X1000MM 2380 m3/h 1400 315X1000MM 3570 m3/h 2100