Filter Pack for Desktop Air Purifier (1 Pack)

Filter Pack for Desktop Air Purifier (1 Pack) Grades: N/A Number of Students: N/A Number of Lessons: N/A Contact Hours: N/A Additional Resources: xTool F1: Portable Laser Engraver with IR & Diode Laser PLEASE NOTE: Due to a temporary disruption in the procurement structure of STEMfinity's xTool distributor, current xTool pricing and availability is subject to change. Please request a quote and our STEM experts would be happy to confirm pricing and availability.   Highlights: Suggestions on filter maintenance Replaceable filters are used in the purifier. You need to clean or replace the filters after long-term use to ensure a better purification effect. Pre-Filter: Replace After Use For 7-15 Days Replace the pre-filter when more than 70% of its surface is covered by dust that can't be removed. HEPA: Filter Replace After Use For 3-6 Months Replace the HEPA filter when it fails to filter out smoke. Main Filter: Replace After Use For 2-3 Months Clean the medium filter when the dust on it causes poor suction of the purifier. If you cannot clean the dust thoroughly, please replace the medium filter. What's Included: 2 spare pre-filters in the package.   Technology Requirements/Specifications: 3-layer filtration including premium activated carbon and HEPA filters to achieve a 99.97% purification rate.