How to Replace the Air Filter in an LG Refrigerator

Which air filter does your LG fridge use?

• LT120F (LG part ADQ73214404): LG's 6-month fresh air filter. LG also sells it in bundles with the LT700P, LT800P and LT1000P water filters, since both are due about every 6 months.
• Hygiene Fresh filter: some newer LG models have a Hygiene Fresh filter on a shelf inside the fridge instead. LG suggests replacing it about once a year, and filters marked UV Hygiene Fresh+ are semi-permanent and don't need replacing.

The air filter is a separate part from the water filter. Check your owner's manual or the label on your current air filter before you buy.

Where is the air filter on an LG refrigerator?

On models that take the LT120F, LG says the filter is centered at the back of the fresh-food compartment, just above the top shelf. Some models have it at the top front of the compartment instead, so check your manual if you don't see a round cover at the back.

Genuine LG air filters

These links search Amazon for LG's own part numbers.

• LG LT120F fresh air filterFind LT120F on Amazon
• LG LT120F air filter, 3-packFind LT120F3 on Amazon

As an Amazon Associate I earn from qualifying purchases. These are Amazon searches for the genuine part number. Check that the listing names your refrigerator model before you buy.

Step-by-step instructions

1. Find the filter cover. Look for the round air filter cover at the back of the fresh-food compartment, usually just above the top shelf.
2. Remove the cover. Twist the cover to the left (counterclockwise) to release it from the wall. The old filter sits inside the cover.
3. Replace the filter. Take out the old filter and put in the new one with the side marked Front facing out.
4. Refit the cover. Line the cover up with the wall and twist it to the right until it locks in place.
5. Reset the Air Filter light. Press and hold the Air Filter button on the control panel for 3 seconds to reset the filter indicator.

After you change the filter

• Wi-Fi models can also reset the air filter indicator in the LG ThinQ app.
• Write the date on the new filter so you know when the next one is due, about 6 months from now.

Also due: the water filter for your LG fridge

Don't see your model? Search by model number or browse all LG models.

Frequently asked questions

How often should I change the air filter in my LG refrigerator?

LG recommends about every 6 months, or when the Change Filter light comes on.

Is the LG air filter the same as the water filter?

No. The LT120F only freshens the air inside the fridge. Drinking water goes through a separate water filter such as the LT1000P, LT700P or LT800P, which LG sells together with the LT120F in bundles.

Does every LG refrigerator have an air filter?

No. Look for a round cover at the back of the fresh-food compartment or check your manual. Some newer models have a Hygiene Fresh filter on a shelf instead, and UV Hygiene Fresh+ filters don't need replacing.

How do I reset the LG air filter light?

Hold the Air Filter button for 3 seconds after changing the filter. On Wi-Fi models you can also reset it in the LG ThinQ app.

Related guides

• How to Replace an LG Refrigerator Water Filter
• How to Reset the Water Filter Light on an LG Refrigerator
• How Often Should You Change Your Refrigerator Water Filter?