The iRobot Roomba 985 takes the iRobot AeroForce High-Efficiency Filter 3-Pack (Roomba 800 & 900 series) (part 4415864) as its filter; replace it every 2 months; Australian sellers list it from A$38.95 as of 5 November 2026. Fitment confirmed against the manufacturer's compatibility list.
Your robot vacuum
iRobot Roomba 985
Robot vacuum
Confirmed against iRobot's listConfirmed against iRobot's own compatibility list
Not yours? ChangeSave it · remind me every 2 months
Takes the 4415864 filter
AeroForce High-Efficiency Filter 3-Pack (Roomba 800 & 900 series) · replace every 2 months · check the code printed on your old filter before ordering.
Your robot vacuum
Robot vacuum
Confirmed against iRobot's listConfirmed against iRobot's own compatibility list
Takes the 4415864
Filter · every 2 months · check the code on your old filter.
Other iRobot robot vacuums that take the 4415864
GenuineGenuine iRobot
$38.95
Robot Specialist · 5 NovLowest genuine · Robot Specialist · checked 5 Nov
CompatibleCompatible option
See seller
No compatible seller tracked yetNo compatible seller tracked yet
Genuine: made by iRobot. Compatible: another brand.Genuine is made by iRobot. Compatible is made by another brand. Check the seller's page for the size and models it fits.
Lowest price · $38.95
Robot Specialist. Every seller we track is listed below. Some links earn us a commission. Some seller links earn us a commission, at no extra cost to you.
Other parts this robot vacuum takes
- iRobot AeroForce Extractor Set (Roomba 800 & 900 series)Open Amazon AU$13.35 each · 2-pack $26.69
The main brush. Separate from the filter. Replace every 6 months.
- iRobot Edge-Sweeping Brush 3-Pack (Roomba e, i, j, Combo; also 600–900)Open Amazon AU$13.50
The side brush. Separate from the filter. Replace every 12 months.
Compare 3 sellers
Compare 3 sellers
AUD, before delivery. Each price shows when it was checked.
Genuine iRobot
3 sellers
Opens Robot Specialist in a new tab. Their page is the source of truth for price, delivery and returns.
Not due yet?
Get a nudge when your filter is due — it's every 2 months. One email two weeks before, no newsletter. Manage or stop it anytime.
How to change the filter in your iRobot Roomba 985
Watch the guide or follow the steps.
- 1Press the bin release button and pull the bin out of the back of the robot.
- 2Open the bin door and empty the bin.
- 3Grasp the yellow tabs on each side of the filter and pull it out.
- 4Push the new filter in and slide the bin back until it clicks.
Every number this part goes by
- Retail name:
- 4415864
- Retail name:
- 4636433
Sellers list any of these; they are the same part.
About your iRobot Roomba 985
iRobot robot vacuum — Roomba 900 series. Its filter is the AeroForce High-Efficiency Filter 3-Pack (Roomba 800 & 900 series), part 4415864, changed every 2 months.
Also in this robot vacuum: iRobot AeroForce Extractor Set (Roomba 800 & 900 series) (every 6 months), iRobot Edge-Sweeping Brush 3-Pack (Roomba e, i, j, Combo; also 600–900) (every 12 months).
Where the model number is: Turn the robot over: the model name and serial are on the label on the underside. The model name is also on the top lid of most robots.
Fits these 9 iRobot models
Common questions
- Which filter fits the iRobot Roomba 985?
- The iRobot Roomba 985 takes the iRobot AeroForce High-Efficiency Filter 3-Pack (Roomba 800 & 900 series) (part 4415864).
- How often should I replace the filter in my iRobot Roomba 985?
- Every 2 months. It works less well as the filter fills up, so it's worth doing on time.
- Where can I buy the 4415864 in Australia?
- We track 3 Australian sellers for the 4415864; the lowest listed price when we last checked was A$38.95 at Robot Specialist. Prices are re-checked daily and dated on this page.
- How do I fit the 4415864 in an iRobot Roomba 985?
- No tools, a few minutes: 4 steps, listed on this page with the replacement video where the maker has one.
- What happens if I don't change it?
- A clogged filter loses suction, worn brushes miss edges, and a stale mop cloth smears rather than cleans.
Something looks wrong with the Roomba 985 match? . Reports go to a person, not a bot.