Replacement Filter Set (F250s / FS300s / FS400)

Name: Replacement Filter Set (F250s / FS300s / FS400)
Brand: PURE-AIR
SKU: FILTER-SET
Availability: InStock

Pre-filter + F9 + HEPA H14 + treated carbon.

Pricing on request

Every PURE-AIR system is configured to your machines, duty cycle and shipping destination. Tell us about your setup and our team responds within one business day with factory-direct pricing.

Request a Quote →

🚚 US warehouse stock · ships in 24h · 🛡 2-year warranty, 30-day returns

Engineering Specs

FitsPA-F250s / FS300s / FS400 / FS500

HEPA GradeH14 (99.99% @ 0.3µm)

CarbonTreated activated carbon

ChangeModular — replace only what's spent

Works With

PA-F250sPA-FS300sPA-FS400PA-FS500

Product Details

PURE-AIR's modular filter design cuts replacement cost by 40-50% versus sealed OEM cartridges: swap only the stage that's spent. F9 deep-pleat pre-stages protect the H14 main filter, so the expensive HEPA lasts dramatically longer. Buy 2+ sets and save 5% automatically at checkout.

Filter Economics

Modular filter stacks replace only the spent stage — a 40-50% running-cost reduction versus sealed OEM cartridges. Buy 2+ replacement filter sets and a 5% bulk discount applies automatically at checkout.

Estimate your annual filter cost →

Frequently Asked Questions

How do I get pricing for the Replacement Filter Set (F250s / FS300s / FS400)?

Click "Request a Quote" and tell us your machine model, quantity and shipping ZIP code. Our team replies within one business day with factory-direct pricing, freight options and any adapter recommendations for your laser.

Will it connect to my laser's exhaust port?

Yes — PURE-AIR ships adapter rings covering 50 / 75 / 100 mm ports, which fit xTool, Bambu Lab, Glowforge, OMTech, Creality Falcon, Aeon, Universal Laser, Epilog and Trotec machines. Check the Machine Fit Guide for your exact model, or ask in your quote request.

How often do filters need replacing?

Pre-filters typically last 1-2 months, the HEPA H14 main filter 4-6 months, and the activated-carbon stage 3-4 months under regular cutting. Because the stack is modular, you only replace the stage that's spent — and 2+ filter sets earn an automatic 5% discount.