Envirovent Ltd is a UK-based ventilation company with over 20 years of experience. They are Britain's leading manufacturer of low-energy domestic ventilation equipment, offering an extensive range of domestic, commercial, and ducting systems. The Envirovent EFHT2S-SELV is a SELV filter less extractor fan known for its low maintenance, long lifespan, and energy efficiency. It features a patented cartridge system, a streamline SELV fused spur unit, and uses an advanced ultra-low watt brushless EC motor. This model is highly versatile and easy to clean, making it a suitable choice for various applications and meeting building regulations. Key features include energy efficiency, IPX5 SELV rating, a powerful backward curved EC motor, and patented helical power expansion chamber with filter less technology.