Replacement G4 Cotton Filter for F LF/5, fan LF/ELF and retrofit kit F/C What it does Captures dust and airborne particles with a G4 filtration class to protect the fan motor and improve air quality. Fits precisely into bathroom fans to reduce dust buildup, lower operating noise, and help maintain the fan’s original performance. Key benefits Exact compatibility: Designed for models F LF/5, fan LF/ELF and retrofit kit F/C for a reliable, secure fit. Precise dimensions: 226 x 226 x 18 mm with a 95 mm center hole for direct replacement and simple installation. Durable construction: Made from robust cotton material for long-lasting filtration and consistent performance over time. Performance improvement: Traps dust to reduce friction and wear on the fan, which helps extend service life and maintain airflow efficiency. Noise reduction: By keeping the fan and housing cleaner, the filter can help reduce rattle and mechanical noise caused by dust accumulation. Specifications Compatibility: F LF/5; fan LF/ELF; retrofit kit F/C Filtration class: G4 Material: Durable cotton Size: 226 x 226 x 18 mm Center hole diameter: 95 mm Typical applications Residential bathrooms: Replace the built-in filter in a bathroom ventilation fan to keep exhaust paths clean and maintain odor and humidity control. Renovation or retrofit: Use with the F/C retrofit kit when updating older ventilation units to ensure proper filtration and fit. Property maintenance: Ideal for landlords, hotels or building managers who need an easy-to-install filter to reduce maintenance frequency and protect fan motors. Installation and care Install as a direct replacement using the 95 mm center hole and the 226 x 226 x 18 mm dimensions to align with existing mounting points. Check and replace regularly according to usage and local conditions; periodic replacement prevents clogging and preserves fan efficiency. Simple, low-maintenance solution that reduces the need for frequent internal cleaning of the fan unit. Why choose this filter Precise fit for specified models and retrofit kit ensures predictable performance. Cotton construction and G4 rating balance durability and effective coarse dust capture. Practical, cost-effective way to extend fan life, reduce noise, and maintain ventilation performance.