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Torxup CoreMask on a tilted box among stacked Torxup boxes.

Replacement filters — buy direct

FlowCore Filter Pack — replacement pads and covers

The dust stage of the CoreMask. FlowCore cotton pads sit in front of the cartridges and catch sanding, MDF, plaster and tile dust; swap them when breathing resistance climbs or the pad shows a visible dust load.

£2.95
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  • Free UK delivery with any other item
  • Same-day dispatch
  • Secure Stripe checkout
FlowCore Filter Pack · 2 pads + 2 covers

Replacement filters — buy direct

FlowCore Filter Pack · 2 pads + 2 covers

5.0/510 Torxup customer reviews

£2.95

  • 2 FlowCore cotton filter pads
  • 2 filter covers
  • Fits every Torxup CoreMask
£2.95 UK postage on its own Same-day dispatch 12-month guarantee Secure Stripe checkout

Stock up and save

3–4 packs: 10% off every pack · 5+ packs: 20% off every pack

Need the mask too? Torxup CoreMask — £15.95 with both filter pairs included.

Never run out

Subscribe & save 15% on filters

A fresh ProDefend carbon pair and FlowCore pack (2 pads + 2 covers), sent on the schedule you choose. You pay £9.26 per refill instead of £10.90, and postage is free.

Deliver every

£10.90 if you bought the same filters separately

  • First refill ships today; your card is charged again every 4 weeks, then the next refill ships the same day.
  • Cancel any time before the next charge from the link in your receipt email, or by emailing store@torxup.co.uk. No minimum term.
  • Secure Stripe checkout; your card details are held by Stripe, not by us.

Want them once instead? ProDefend pair — £7.95 · FlowCore pack — £2.95 (3+ 10% off, 5+ 20% off).

At a glance

The Torxup FlowCore Filter Pack is the £2.95 replacement dust stage for the Torxup CoreMask reusable half-face respirator: two cotton particulate pads and two covers. It is for anyone sanding, cutting or chasing — MDF, plaster, tile and silica dust — who needs a fresh pad rather than a whole new mask. Free UK delivery with any other Torxup item, or £2.95 UK postage on its own; dispatched the same working day from Halton, Lancashire.

  • A FlowCore Filter Pack costs £2.95 with Torxup and contains 2 filter pads plus 2 covers, which is £1.48 per pad.
  • FlowCore cotton pads last 20 to 40 working hours of active dust exposure per pair, and dustier work such as MDF, plaster or silica saturates them faster.
  • Replace a pad when breathing resistance climbs noticeably, when the pad shows a visible dust load, or after any contamination event.
  • FlowCore pads sit in front of the £7.95 ProDefend carbon cartridges; the pads catch particulates and the cartridges take vapours.
  • Multi-buy: 3 to 4 packs are 10% off every pack (£2.65 each) and 5 or more are 20% off (£2.36 each), applied in the basket automatically.
  • Subscribe and save: a FlowCore pack and a ProDefend pair every 2 or 4 weeks for £9.26 per refill, 15% less than the £10.90 they cost separately. Cancel any time.
  • A FlowCore pack on its own pays £2.95 UK postage; with any other Torxup item delivery is free. Returns are accepted within 14 days of receipt.

Related: Torxup CoreMask — £15.95 · CoreMask + Extra Filter Pack — £23.95 · Filter refill subscription, save 15% — £9.26 per refill · CoreMask technical specifications · How long do P3 filters last? · Dust mask buyer's guide UK 2026

What's in the pack

  • 2 FlowCore cotton filter pads
  • 2 filter covers
  • Fits every Torxup CoreMask

How long do CoreMask filters last?

CoreMask FlowCore pads typically last 20 to 40 working hours of active dust exposure before replacement; dustier work (MDF, plaster, silica) saturates them faster. Replace when breathing resistance increases noticeably, on visible dust load, or after any contamination event.

Which CoreMask does it fit?

Fits every Torxup CoreMask. Both filter types ship with the mask — the standard kit (£15.95) includes a pair of each, and the bundle (£23.95) adds a spare pair of each.

Watch: How to stop glasses fogging up with a mask — best solution

Filter questions, answered

Is there a discount for buying several packs?
Yes. Three to four FlowCore packs are 10% off every pack (£2.65 each) and five or more are 20% off every pack (£2.36 each). The discount is applied in the basket automatically. To have filters sent automatically, the refill subscription delivers a FlowCore pack and a ProDefend pair every 2 or 4 weeks for £9.26, 15% off, and can be cancelled any time.

How do I know when a FlowCore pad needs changing?
Three signals: breathing resistance climbs noticeably, the pad carries a visible dust load, or the mask has been through a contamination event. In normal use that lands between 20 and 40 working hours of active dust exposure per pair.

Can FlowCore cotton pads be washed?
No. Washing collapses the cotton fibre structure and destroys the filtration efficiency the pad was made for. Wash the CoreMask body and silicone seal, and replace the pads.

What are the two covers in the FlowCore pack for?
The covers retain each cotton pad against the cartridge housing so the pad cannot lift or shift while you work. One cover fits each side; they are reusable and only need replacing if damaged.

Will FlowCore pads stop resin or paint fumes?
No. FlowCore pads are a particulate filter for dust. Vapours and odours from paint, resin and solvents need the ProDefend activated-carbon cartridges at £7.95 fitted behind the pads.

Replacement filters — buy direct

FlowCore Filter Pack · 2 pads + 2 covers

£2.95 UK postage on its own, free with any other item · Same-day dispatch · Secure Stripe checkout

£2.95

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