HSIAMEN Pre-Filter Compatible with Levoit Core 300 & PuroAir 240 Air Purifier, for Core 300S P350 Core300-P Filters, Fit Part# Core 300-RF P350-RF, 6-Pack

["[Compatible]: HSIAMEN Pre-filter is compatible with PuroAir 240 Air Purifier & Levoit core 300 Core300-P, VortexAir 300s, Core 300S-RF 300-RF-WS 300-RF-PA 300-RF-TX 00-RF-SR 300-RF-MA P350-RF ⚠NOTICE: This filter set is only pre-filter, does NOT include the HEPA filter or the carbon filter","[Electrostatic Cotton]: Features electrostatic material that traps particles such as d^st, lint and sm0ke, extending the filter’s life. Unlike other brands, it is thinner and has low wind resistance to ensure air circulation while maintaining high filtration efficiency","[Special Design]: Nylon outer pre-filter traps large particles such as pet fur, fibers and hair and supports electrostatic cotton. In contrast to other brands, we use Hook and Loop Tape which is specially designed for electrostatic cotton material and is much stronger than tape","[For Optimal Performance]: Clogging of filters is the main cause of filtering efficiency. HSIAMEN pre-filter traps large particles, protecting the other filters in the first stage. It is recommended to replace the pre-filter every 3 MONTHS, depending on air quality and frequency of use","[Easy to Replace]: It’s just the right size and simple to replace. No cutting needed. Maximize savings for your year-round air cleaning needs with our value bundle. We offer 24/7 customer service support. If you have any questions or concerns, please don't hesitate to reach out to us"]