Aftermarket · Made by Think Crucial · Not made by IKEA

Replacement filter sets for the IKEA FÖRNUFTIG.

Each set replaces both FÖRNUFTIG filters: the particle filter (IKEA Article #10461944) and the activated carbon layer (#40487283). 2 sets for $87.99.

Think Crucial filter set for the IKEA FÖRNUFTIG filter set — **Fig. 01**2 sets

FitsPart 10461944 / 40487283

IKEA FÖRNUFTIG air purifier (U.S. models)
IKEA Article #10461944 (particle filter)
IKEA Article #40487283 (carbon layer)

Not sure? Check your model or email support@thinkcrucial.com.

Shipping
Free U.S. shipping on every order
Dispatch
Ships the same business day when ordered by 2pm ET
Fit
Fit guaranteed on the models listed
Returns
30-day returns with a prepaid label

01Spec sheetFrom the listing

What's in the box.

Exactly what ships, so you can match it against what's in your machine now.

In the boxBy option

2 + 2 ×
particle filters and activated carbon layers
in the 2-set pack
1 + 1 ×
particle filter and activated carbon layer
in the single set

Fits: IKEA FÖRNUFTIG air purifier, replacing IKEA Articles #10461944 and #40487283
Replaces part no.: 10461944 / 40487283 (IKEA)
Options: 2 sets: $87.99 · 1 set: $49.99
Subscription: None. Buy when you need it
Made by: Think Crucial (aftermarket, not affiliated with IKEA)
Ships: Free, from a U.S. warehouse. Same business day when ordered by 2pm ET; arrives in 2–5 business days

02CompatibilityFÖRNUFTIG filter set

Check your model.

Listed for the IKEA FÖRNUFTIG air purifier, replacing IKEA Articles #10461944 and #40487283. Two minutes now saves a return later.

IKEA FÖRNUFTIG air purifier (U.S. models)
IKEA Article #10461944 (particle filter)
IKEA Article #40487283 (carbon layer)

01
Check the purifier
FÖRNUFTIG is printed on the purifier's label and on your IKEA receipt.
02
Match the article numbers
IKEA's own filters for it are Article #10461944 (particle) and #40487283 (carbon). One set replaces both.
03
Still not sure?
Email your model number to support@thinkcrucial.com and we'll tell you whether it fits. We reply within one business day.

03QuestionsBefore you order

Before you order.

Straight answers. Anything else, email support@thinkcrucial.com.

Q.01Is this made by IKEA?

No. It's a compatible replacement made by Think Crucial. It isn't made, sold or endorsed by IKEA, and Think Crucial isn't affiliated with IKEA.

Q.02Do I get both filters?

Yes. Each set has a particle filter and an activated carbon layer. The 2-set pack has two of each.

Q.03Does it fit the UPPÅTVIND?

No. This set is for the FÖRNUFTIG. We sell a separate UPPÅTVIND filter.

Q.04How do I install it?

Turn off the FÖRNUFTIG, open the front panel, lift out the used pair, seat the new particle filter first and the carbon layer on top, then close and restart.

Q.05What if it doesn't fit?

Fit guaranteed: if it doesn't fit the model we list, email support@thinkcrucial.com within 30 days of delivery with your order number and model number. We send a prepaid return label and refund you in full, even if you opened it to test the fit. Changed your mind? Return it unused, in its original packaging, within 30 days of delivery.

Q.06Is there a subscription?

No. You buy when you need it. Nothing renews and nothing auto-ships.

Q.07When will it arrive?

Free U.S. shipping on every order, from a U.S. warehouse. Ships the same business day when ordered by 2pm ET. Arrives in 2–5 business days.

04Who makes this

We make what we sell.

Think Crucial started in 2007 at a family vacuum repair shop. Today we're a U.S. company in Hollywood, Florida, making aftermarket filters, bags and parts built to fit the machines you already own. Most people can fit the part themselves. They just need the right one, and a way to check it first.

Questions before you order? Email support@thinkcrucial.com. We reply within one business day.

Ready to order