LG LT120F Refrigerator Air Filter

LT120F Refrigerator Air Filter Replacement

The LG LT120F is the replacement air filter for LG refrigerators fitted with a Pure N Fresh-style air filtration compartment — and it does a completely different job from the water filter sitting elsewhere in your fridge. While the water cartridge cleans what comes out of the dispenser, the LT120F cleans the air that circulates around your food. It is a fresh activated-carbon air filter that absorbs the odours a refrigerator collects every day: last night’s fish, cut onions, strong cheese, leftovers, garlic, and the general stale smell that builds up in a sealed box of mixed groceries. A working LT120F keeps the whole compartment smelling neutral for up to 6 months, so your butter, milk and fruit taste like themselves instead of like everything stored next to them. When the filter is exhausted the smells come back and linger — that is your sign to change it, and the change itself takes under a minute with no tools.

Why Choose LT120F Air Filter

Refrigerator odours are not just unpleasant; they move. In a sealed fridge, odour molecules from strong foods settle on everything else, which is why milk can pick up a hint of onion and melon can taste faintly of leftovers. The activated carbon inside the LT120F is made to trap those molecules: as the fridge’s fan circulates air through the filter compartment, the carbon’s porous surface absorbs odour-causing compounds and holds them, instead of letting them recirculate onto your food. The LT120F is built to the original LG specification for the compartment, so it drops into the holder with the correct fit and airflow — a loose or wrong-size filter lets air bypass the media and odours survive. Owners searching for LT120F or ADQ73334008 want one thing: the right-sized genuine-spec carbon filter that makes the fridge smell like nothing at all. That is exactly what a fresh LT120F delivers, for a full 6-month working life.

Compatible Refrigerator Models

The LT120F fits LG refrigerators that use the LT120F air filter. Compatibility depends on your fridge having the matching air filter compartment, so confirm against the label on your current air filter before ordering.

LG Refrigerators with an Air Filter Compartment

This filter is made for the LG French-door and side-by-side models equipped with an air filtration system that takes the LT120F cartridge — the compartment is usually found on the rear wall inside the fresh food section, behind a small cover marked as the air filter or Pure N Fresh cover.

Replaces These Part Numbers

The LT120F replaces LT120F and ADQ73334008. If either number appears on your old air filter, on the compartment cover, or in your refrigerator manual, this is the correct replacement.

How to Check Before You Order

Open the air filter cover inside your fridge and slide the old filter out; read its label. If it says LT120F or ADQ73334008, order with confidence. If your fridge has no air filter compartment, it does not use an air filter cartridge at all — the LT120F is only for models built with one.

Fresher Air for Everyday Storage

A fresh LT120F makes a difference you notice every time the door opens. Strong-smelling foods stop announcing themselves to the whole kitchen. Delicate foods — butter, cream, cakes, berries, fresh herbs — keep their own flavours instead of absorbing their neighbours’. Leftovers stay in the fridge without perfuming everything stored after them. Because the filter works on the air itself rather than masking smells with fragrance, the result is a genuinely neutral compartment: food smells like food, and nothing else. Over its life the carbon gradually fills with the compounds it has absorbed, which is why odours slowly return as the filter approaches 6 months even though it still looks clean. Changing on schedule keeps the air neutral all year round — and a neutral fridge is also easier to keep organised, because nothing gets buried at the back to avoid its smell.

Easy to Replace

Changing the LT120F takes under a minute and needs no tools:

1. Open the refrigerator door and find the air filter cover — on most LG models it is on the rear wall of the fresh food compartment and is marked as the air filter cover.
2. Open or remove the cover following your manual’s direction (it typically pulls or swings open).
3. Lift or slide the old LT120F filter out of its holder. Note the number on its label — LT120F or ADQ73334008 — and confirm it matches your new filter.
4. Set the new LT120F into the holder in the same orientation as the old one, flat and fully seated.
5. Close the cover until it clicks or sits flush.
6. If your model has an air filter indicator, reset it following your manual’s instructions, so the fridge counts a full fresh 6-month life from today.

That is the whole job — no water lines, no flushing, no waiting. The new carbon starts absorbing odours as soon as the fridge’s fan moves air through it.

A Reliable Choice for a Fresher Fridge

If you want a dependable LT120F replacement, this filter is a strong choice: genuine-spec fit for LG air filter compartments, fresh activated carbon media, a full 6-month working life, and a change that takes less time than unloading a bag of groceries. Paired with an on-schedule water filter change, it keeps both sides of your refrigerator — the water you drink and the air around your food — clean. And if you mis-order, our free 30-day returns with a prepaid label make it easy to put right.

Inside the Filter: How Activated Carbon Traps Odours

The LT120F works by adsorption, and understanding it explains why size and fit matter so much. Activated carbon is carbon processed to be full of microscopic pores, which gives even a small filter an enormous internal surface area. Your refrigerator’s fan continuously circulates the compartment’s air through the filter compartment. As that air passes over the carbon, the volatile compounds that carry smells — from onions, fish, cheese, garlic and leftovers — stick to the carbon’s surface and are held there instead of being blown back over your food. Nothing is sprayed or masked; the odour molecules are physically removed from circulation. Two things follow from that. First, the filter must seal the compartment properly: air that slips around a wrong-size filter carries its odours with it, which is why the genuine-spec LT120F fit matters. Second, the carbon’s capacity is finite. Pore by pore it fills over roughly 6 months, and once it is saturated the smells pass through again — the filter still looks clean, but it has quietly stopped working.

When to Replace: Signs the Air Filter Is Spent

Unlike a water filter, an air filter gives you no flow change to watch — the smell itself is the gauge. The first sign is usually a specific one: a strong food you stored days ago still faintly greets you when the door opens. Then the general background freshness fades, and foods stored open — butter, milk, cut fruit — begin picking up their neighbours’ flavours again. If your model has an air filter indicator, it will call the change at the set interval, but in a hard-working family fridge the carbon can exhaust ahead of the light. Replacing at 6 months, or as soon as odours return, keeps the compartment neutral. And because the swap takes under a minute, there is no reason to live with a spent filter while a replacement is in the post — which is why so many owners keep the next LT120F in a drawer.

Storing Your Spare Filters

Keep spare LT120F filters sealed in their packaging in a dry kitchen drawer or cupboard, away from detergents and scented products — activated carbon absorbs odours from the air around it, so a sealed filter stays fresh until the day it goes in. Stored that way, a spare is ready to work at full strength the moment you fit it.

Choose Your Pack Size

Every LT120F lasts up to 6 months, so the packs simply decide how far ahead you are covered. At this price, most owners stock up — an air filter is exactly the kind of small item you do not want to be without when the smells come back:

• 1-Pack — $18.99 (SKU LT120F-1PK): one filter, up to 6 months of odour control. Right for a single change or a first order.
• 2-Pack — $37.99 (SKU LT120F-2PK): a full year of air filters in one delivery — one fitted today, one ready on the shelf.
• 3-Pack — $56.99 (SKU LT120F-3PK): 18 months of cover in a single order.
• 4-Pack — $75.99 (SKU LT120F-4PK): two full years of replacements, and no filter shopping until then.

Multi-packs are about convenience: the change takes a minute, but only if the new filter is already in the house. With free shipping on every pack size, keeping a spare costs nothing extra in delivery and saves you running an exhausted filter for weeks while you wait for a replacement to arrive.

FAQ’s

Here are the frequently asked questions about this product.

Is the LT120F a water filter? No. The LT120F is an air filter — it cleans the air inside the refrigerator to control odours. Your fridge’s drinking water is handled by a separate water filter cartridge (such as the LT500P, LT700P or LT1000P, depending on model). Many LG fridges use one of each, and both are on roughly a 6-month change cycle.

How long does the LT120F last? Up to 6 months. As the activated carbon fills with absorbed odours it gradually stops working, so if fridge smells return before 6 months in a hard-working household, change it early.

Which part numbers does the LT120F replace? It replaces LT120F and ADQ73334008. Check the label on your current air filter or the compartment cover before ordering.

How do I install the LT120F? Open the air filter cover (usually on the rear wall of the fresh food compartment), lift the old filter out, set the new one in the same way, close the cover, and reset the air filter indicator if your model has one. Under a minute, no tools.

What does the air filter actually do about smells? The activated carbon inside absorbs odour molecules from the air the fridge circulates, instead of covering them up with fragrance. The compartment smells neutral, and foods stop picking up each other’s flavours.

My fridge does not seem to have an air filter compartment. Do I need this? No. Only LG models built with an air filtration compartment use the LT120F. If there is no marked air filter cover inside your fridge, your model does not take an air filter cartridge.

Buy the LT120F from Discounted Filter Store

Order the LG LT120F from Discounted Filter Store and every order — any amount, any pack size — ships free anywhere in the US. We process orders within 1–2 business days and deliver in 3–5 business days via USPS. Changed your mind or ordered the wrong filter? Returns are free within 30 days with a prepaid label, so you can check your filter number and order with confidence.