How often should I replace my laser fume extractor filters?

Pre filters typically last 1-3 months, F9 medium filters 3-6 months, HEPA H14 main filters 6-12 months and activated carbon modules 4-8 months, depending on weekly cutting hours and materials. PURE-AIR extractors are modular, so you only replace the stage that is actually spent.

Do PURE-AIR filters fit my machine?

One modular filter platform covers the PA-F250s, PA-FS300s, PA-FS400 and PA-FS500. Use the machine finder on this page to confirm the exact stack for your xTool, Glowforge, OMTech, Bambu Lab, Creality or Thunder laser.

How much do replacement filters cost compared with brand-name cartridges?

PURE-AIR manufactures its own HEPA H14 and activated carbon stages, so complete filter sets typically cost up to 50% less than brand-name laser filter cartridges. Multi-set orders are quoted with tiered volume pricing, so the per-set cost falls as the quantity rises.

Filter Finder

Find the Right Filters for Your Machine.

Every PURE-AIR extractor uses a different filter stack. Type your extractor model (PA-FS300s…) or your laser (xTool P2, Glowforge Pro…) and we'll show the exact stages, specs and replacement intervals — then request pricing in one go.

Search your machine to see its filters

Or tap a PURE-AIR model chip above. We'll list every stage — pre filter, HEPA H14, carbon or PTFE cartridge — with specs and replacement intervals.

PURE-AIR three-stage replacement filter set

Filter Subscription

Never Run Out of Clean Air.

Get complete filter sets delivered on your schedule and save 15% on every order — never cut "just one more sheet" through a saturated filter again.

Deliver every Most makers on ~10 hrs/week choose 4 months.

Request Subscription Pricing — 15% off every set →

Complete set fits PA-F250s, PA-FS300s and PA-FS400. Skip, pause or cancel anytime by replying to any shipment email.

We ship before you run out

Sets arrive on your chosen schedule from our US warehouse — ships in 3-7 business days, free shipping.

15% off, every time

Subscribers save 15% on every set versus one-time pricing. Savings stack the longer you stay subscribed.

Pause or cancel anytime

Cutting less this quarter? Skip a delivery in one click. No lock-in, no fees.

Why PURE-AIR filters cost less to run

Modular, not sealed

Replace only the stage that's spent. Sealed OEM cartridges force you to throw away a perfectly good HEPA when just the carbon is exhausted — ours don't.

Deep-pleat pre-stages

The F9 pre-filter takes the particulate hit so the H14 main filter lasts 4–6 months instead of weeks. That's the single biggest running-cost lever.

~2.3× cheaper than OEM

Over a year of typical cutting, PURE-AIR filter spend indexes at 100 versus ~228 for brand-name OEM cartridges and ~475 for sealed single-use cartridges.