This Philips Replacement Humidification Wick Filter FY2425/30 can help you keep the ideal humidity level in your space. This humidifier enables hygienic humidification by filtering bacteria and limescale from the water before it is given to the air. This humidification wick offers reliable defence and promises ideal filtering for up to six months. It ensures consistent great performance by correctly fitting your appliance. It humidifies the air with up to 99-percent fewer microorganisms by emitting nano-sized molecules of clean water vapour using NanoCloud Technology.-Blue and White-Size (25.6x25.6x3)