LG Refrigerator Fresh Air Filter LT120F Replacement: Complete Guide
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Maintaining a fresh-smelling refrigerator is essential for food quality and your kitchen environment. If you own an LG refrigerator, the LG LT120F fresh air filter is a critical component that keeps your fridge odor-free and your food fresher for longer. In this comprehensive guide, we'll cover everything you need to know about changing your LG refrigerator air filter, from identifying when it needs replacement to step-by-step installation instructions.
What is the LG LT120F Fresh Air Filter?
The LG LT120F is a genuine OEM (Original Equipment Manufacturer) fresh air filter designed specifically for LG refrigerators. Unlike water filters that purify your drinking water and ice, the fresh air filter focuses on maintaining optimal air quality inside your refrigerator compartment.
This NSF/ANSI-certified filter uses advanced carbon filtration technology to:
- Eliminate strong food odors from items like onions, garlic, fish, and cheese
- Prevent odor transfer between different foods
- Maintain optimal air circulation throughout your refrigerator
- Extend the freshness of fruits, vegetables, and other perishables
- Create a cleaner, more pleasant refrigerator environment
Why Replace Your LG Refrigerator Fresh Air Filter?

Over time, your refrigerator's fresh air filter becomes saturated with odor-causing particles and loses its effectiveness. Regular replacement is crucial for several reasons:
1. Odor Control
A fresh filter actively removes unpleasant smells, preventing your refrigerator from developing that "old fridge" odor that can affect the taste and quality of your food.
2. Food Freshness
By maintaining optimal air quality, a clean filter helps your produce, dairy, and other perishables stay fresh longer, reducing food waste and saving you money.
3. Appliance Performance
A clogged or saturated filter can impact your refrigerator's air circulation system, potentially affecting its overall performance and efficiency.
4. Health and Hygiene
Fresh air circulation helps prevent the growth of bacteria and mold that thrive in stagnant, odor-filled environments.
When to Replace Your LT120F Filter
LG recommends replacing the LT120F fresh air filter every 6 months for optimal performance. However, you may need to replace it sooner if you notice:
- Persistent odors: If your refrigerator smells bad even after cleaning
- Filter indicator light: Many LG models have a filter replacement reminder light
- Reduced freshness: Food spoiling faster than usual
- Visible discoloration: The filter appears dark or saturated
- Heavy usage: If you frequently store pungent foods
Pro Tip: Set a reminder on your phone or calendar for every 6 months to ensure you never forget to replace your filter.
Compatible LG Refrigerator Models
The LT120F fresh air filter is compatible with a wide range of LG refrigerator models, including
French Door Refrigerators:
- LFXC22526S (all variants: 01, 02, 04, 10)
- LFXS26596D / LFXS26596S
- LFXS26973D / LFXS26973S
- LFXS28596S
- LF29H8330S
- LMXS28626D / LMXS28626S
- LMXS28596S
- LRFXC2606S (variants 00, 01)
- LRFXS2513S
- LRFLC2706S
Side-by-Side Refrigerators:
- LRMVS2806D
- LRMVS3006S (variant 01)
- LRSOS2706S
- LRSXS2706S
Note: This list includes the most common compatible models. Always check your refrigerator's user manual or the model number label inside your fridge to confirm compatibility before purchasing.
How to Replace Your LG LT120F Fresh Air Filter: Step-by-Step Guide

Changing your LG refrigerator fresh air filter is a simple process that takes less than 5 minutes and requires no tools. Follow these easy steps:
Step 1: Locate the Filter Housing
The fresh air filter is typically located in the upper right corner of the fresh food compartment (the main refrigerator section, not the freezer). Look for a small rectangular housing with a cover or door.
Step 2: Remove the Old Filter
Depending on your model, you'll either
- Press a release tab or button and pull the filter straight out, OR
- Twist the filter counterclockwise and pull it out
The old filter should slide out easily. If it feels stuck, check for any locking mechanisms you may have missed.
Step 3: Prepare the New LT120F Filter
Remove your new LG LT120F filter from its packaging. There's no need to rinse or pre-soak the filter—it's ready to install right out of the box.
Step 4: Install the New Filter
Insert the new filter into the housing, making sure it's oriented correctly (there's usually an arrow or indicator showing the proper direction). Push firmly until you hear or feel a click, indicating it's locked in place.
Step 5: Reset the Filter Indicator
If your LG refrigerator has a filter replacement indicator light, reset it by:
- Pressing and holding the "Filter Reset" button for 3-5 seconds, OR
- Following the specific reset instructions in your refrigerator's user manual
That's it! Your new LT120F filter is now installed and working to keep your refrigerator fresh and odor-free.
Tips for Maintaining Your LG Refrigerator
While replacing your fresh air filter is important, here are additional tips to keep your LG refrigerator in top condition:
1. Regular Cleaning
Clean your refrigerator interior monthly with a solution of warm water and baking soda to prevent odor buildup.
2. Proper Food Storage
Store pungent foods in airtight containers to minimize odors and reduce strain on your air filter.
3. Check Door Seals
Ensure your refrigerator door seals are clean and intact to maintain proper temperature and air circulation.
4. Don't Forget the Water Filter
If your LG refrigerator has a water/ice dispenser, remember to replace the water filter (typically the LT800P or LT1000P) every 6 months as well.
5. Maintain Proper Temperature
Keep your refrigerator at 37°F (3°C) and your freezer at 0°F (-18°C) for optimal food preservation.
Where to Buy Genuine LG LT120F Filters
When purchasing replacement filters, always choose genuine LG parts to ensure:
- Perfect fit and compatibility
- NSF/ANSI certification for safety and quality
- Optimal performance and longevity
- Warranty protection for your refrigerator
Beware of counterfeit or generic filters that may not meet LG's quality standards and could potentially damage your refrigerator or void your warranty.
Frequently Asked Questions
How often should I replace my LG refrigerator fresh air filter?
LG recommends replacing the LT120F fresh air filter every 6 months. However, if you notice persistent odors or reduced freshness, you may need to replace it sooner.
What's the difference between a fresh air filter and a water filter?
A fresh air filter (like the LT120F) removes odors from the air inside your refrigerator compartment, while a water filter purifies the water and ice dispensed by your refrigerator. Both are important for optimal refrigerator performance, but they serve different purposes.
Can I clean and reuse my LT120F filter?
No, the LT120F is designed as a disposable filter and cannot be effectively cleaned or reused. The carbon filtration material becomes saturated over time and must be replaced for continued effectiveness.
Will a generic filter work as well as the genuine LG LT120F?
While some generic filters may fit your refrigerator, they may not meet the same quality and performance standards as genuine LG filters. Using non-genuine parts could also void your warranty. We recommend sticking with the authentic LG LT120F for best results.
What happens if I don't replace my fresh air filter?
If you don't replace your filter regularly, you'll likely notice persistent odors, reduced food freshness, and potential odor transfer between foods. While it won't damage your refrigerator, it will significantly impact your food quality and kitchen environment.
How do I know which filter my LG refrigerator needs?
Check your refrigerator's user manual or look for the model number label inside your fridge (usually on the side wall or ceiling of the fresh food compartment). You can also visit LG's website and enter your model number to find compatible filters.
Is the LT120F filter recyclable?
The LT120F filter contains activated carbon and plastic components. Check with your local recycling facility to see if they accept these materials. Some areas have specialized recycling programs for refrigerator filters.
Conclusion
Replacing your LG refrigerator fresh air filter is a simple yet essential maintenance task that takes just minutes but provides lasting benefits. By changing your LT120F filter every 6 months, you'll enjoy a fresher-smelling refrigerator, longer-lasting food, and optimal appliance performance.
Don't wait until odors become a problem—make filter replacement a regular part of your home maintenance routine. Your nose (and your food) will thank you!
Ready to replace your filter? Order your genuine LG LT120F fresh air filter today and experience the difference a fresh filter makes in your refrigerator's performance and your food's quality.