LG LT120F Refrigerator Air Filter

A fresher-smelling refrigerator starts with a filter that actually keeps up with daily use. The LG LT120F is the replacement air filter designed for compatible LG refrigerators, working continuously inside the fresh food compartment to reduce odors from stored food and keep the internal environment consistently fresh. The push-in installation is specific to the LT120F housing and takes seconds to swap with no tools required. Always verify the part number against your LG refrigerator model before ordering, as LG air filter designs vary across model generations and are not universally interchangeable.

Why Choose the LG LT120F Refrigerator Air Filter

The LT120F uses activated carbon filtration to target odor-causing compounds at the source rather than simply masking them. Here is what the LG LT120F specifically addresses:

• Food odors from stored produce, dairy, and leftovers
• Ethylene gas released by ripening fruits and vegetables
• Airborne odor compounds circulating inside the refrigerator cabinet
• Cross-contamination of flavors between strongly scented and delicate food items
• Stale air buildup inside the fresh food compartment

LG LT120F Air Filter Specifications

• Product Name: LG LT120F Refrigerator Air Filter
• Part Number: LT120F
• Also Known As: ADQ73214404, ADQ73214402
• Cartridge Life: Up to 6 months
• Filter Media: Activated carbon
• Installation Type: Push-in, tool-free
• Compatible Models: Select LG refrigerators requiring the LT120F air filter
• Brand: LG 

Easy Installation for the LG LT120F Refrigerator Air Filter

The LT120F uses a push-in design that takes seconds to swap with no tools required. Here is how the replacement works:

1. Locate the air filter housing inside the LG refrigerator fresh food compartment, typically on the rear wall
2. Press the release tab on the housing to disengage the old filter
3. Pull the old LG LT120F filter straight out of the housing slot
4. Remove the new LT120F filter from its packaging
5. Push the new filter firmly into the housing until it clicks securely into place
6. Note the installation date and plan the next replacement at the 6 month mark
7. Reset the air filter indicator light per the LG refrigerator user guide if applicable

When to Replace the LG LT120F Air Filter

Replace the LG LT120F refrigerator air filter when any of the following occur:

• Every 6 months regardless of usage level
• Persistent food odors develop inside the refrigerator between cleanings
• Stored produce spoils faster than expected
• A stale or musty smell is noticeable when opening the refrigerator door
• The air filter indicator light activates on the LG refrigerator control panel

Key Benefits

• Activated carbon filtration targets odor compounds and ethylene gas at the source rather than masking them
• Reduces cross-contamination of flavors between strongly scented and delicate food items stored in the same compartment
• Extends produce freshness by continuously reducing ethylene gas that accelerates ripening and spoilage
• Push-in tool-free installation completed in seconds with no specialist knowledge required
• 6 month service life for a simple twice-yearly replacement schedule
• Compatible with select LG refrigerators using the LT120F, ADQ73214404, and ADQ73214402 filter formats

FAQs

What is the difference between the LG LT120F and the LG LT1000P water filter?

The LT120F is an air filter that reduces odors inside the refrigerator compartment, while the LT1000P is a water filter that reduces contaminants in dispensed water and ice. They serve completely different functions and are not interchangeable. Some LG refrigerator models require both.

Does the LG LT120F need to be activated or prepared before installation?

No preparation is needed. Remove the new LT120F from its packaging and push it directly into the housing. Activated carbon begins working immediately with no soaking, flushing, or break-in period required.

My LG refrigerator still smells after replacing the LT120F — what should I check?

The LT120F reduces airborne odor compounds but does not remove odors embedded in refrigerator surfaces, drawers, or food containers. Check for spoiled food items, wipe down interior surfaces, and allow 24 to 48 hours for the new filter to reach full adsorption capacity before concluding there is a problem with the filter itself.

Is the LG LT120F the same as ADQ73214404 or ADQ73214402?

Yes. ADQ73214404 and ADQ73214402 are alternative part numbers for the same LT120F filter format. If your refrigerator currently uses either of those part numbers, the LT120F is the correct replacement.

Can I extend the LT120F beyond the 6 month replacement window if the refrigerator still smells fresh?

Activated carbon reaches adsorption capacity whether odors are noticeable or not. A filter past its service life may no longer be reducing ethylene gas effectively even if the refrigerator smells acceptable. Replacing on the 6 month schedule maintains consistent performance rather than relying on smell alone as an indicator.

Where is the air filter housing located in an LG refrigerator?

On most compatible LG refrigerator models the LT120F housing sits on the rear wall of the fresh food compartment. The exact position varies slightly by model, so consulting the user guide for your specific LG refrigerator confirms the precise location if it is not immediately visible.