10 Pack Pre-Filter Replacement for Sielux Fume Extractor, 4.8" × 4.8" × 0.3" Smoke Purifier Pre Filters, Extends Filter Life, Captures Dust & Debris, Compatible with Sielux Smoke Purifier

Keep your Sielux Fume Extractor running at its best with this **10 Pack Pre-Filter Replacement Set**. Specifically designed for Sielux smoke purifiers, each pre-filter measures **4.8 × 4.8 × 0.3 inches** and installs easily for quick maintenance. The pre-filter serves as the first line of defense—capturing larger particles such as dust, wood shavings, plastic debris, iron filings, and other visible contaminants. By stopping these particles before they reach the HEPA and activated carbon layers, the pre-filter helps **extend the lifespan of the core filters**, reduces clogging, and keeps the purifier operating efficiently. To maintain ideal performance, replace the pre-filter every **3–15 days**, depending on your working environment. When the filter surface becomes heavily covered (over 70%) and cannot be cleaned, it’s time for replacement. For best results, always use the **Pre-filter, HEPA filter, and Activated Carbon filter** together as part of the complete filtration system. **Package Includes:** * 10 × Pre-filters (4.8 × 4.8 × 0.3 inches) Ideal for laser engraving studios, workshops, makerspaces, and any workspace using the Sielux Smoke Purifier.

• COMPATIBLE WITH SIELUX FUME EXTRACTOR – These replacement pre-filters (10 pack) are designed to fit the Sielux Smoke Purifier perfectly. Each filter measures **4.8 × 4.8 × 0.3 inches**, ensuring a secure and proper installation.
• CAPTURES LARGE PARTICLES & PROTECTS MAIN FILTERS– The pre-filter traps larger visible particles including dust, wood chips, plastic scraps, iron filings, and more. It helps reduce clogging and **extends the life of the activated carbon and HEPA filters**.
• 100-HOUR LIFESPAN – Each box includes **10 pre-filter**. Replace the filters approximately every **100 hours** or when more than 70% of the filter surface is covered with dirt that cannot be cleaned, it’s time to install a new pre-filter.
• IMPROVES PURIFICATION PERFORMANCE– By blocking coarse debris before it reaches the inner filtration layers, the pre-filter keeps your purifier working efficiently and maintains a high purification rate.
• USE WITH ALL THREE FILTER STAGES – The **Pre-filter + HEPA Filter + Activated Carbon Filter** must be used together for optimal performance. Each layer plays an important role in the multi-stage filtration system and helps maintain cleaner air inside your workspace.