How to Replace Your Refrigerator Air Filter: Complete Guide [2026]
Introduction
While most people know about water filters, many refrigerator owners overlook an equally important component: the air filter. Your refrigerator's air filter removes odors, keeps food fresh longer, and prevents flavor transfer between foods. This comprehensive guide will show you exactly where to find your air filter, when to replace it, and how to do it in just 5 minutes.
What You'll Learn:
- The difference between air filters and water filters
- Where air filters are located in different brands
- Step-by-step replacement instructions
- How to maximize food freshness
What Does a Refrigerator Air Filter Do?
Unlike water filters that purify drinking water, air filters serve a different but equally important purpose:
Primary Functions:
- Odor elimination - Removes food odors and prevents smell transfer
- Ethylene gas absorption - Slows ripening of fruits and vegetables
- Bacteria reduction - Helps maintain a cleaner environment
- Food preservation - Extends the life of fresh produce
Common Air Filter Technologies:
- Activated carbon - Absorbs odors and gases
- Baking soda - Neutralizes acidic odors
- Zeolite - Traps ethylene gas
- HEPA-style filters - Captures airborne particles
How Often Should You Replace Your Air Filter?
| Filter Type | Replacement Schedule |
|---|---|
| Standard carbon filters | Every 6 months |
| Fresh flow filters | Every 6 months |
| Odor filters | Every 3-6 months |
| Combination filters | Every 6 months |
Signs Your Air Filter Needs Replacement:
- Strong odors when opening the fridge
- Food spoiling faster than usual
- Fruits and vegetables ripening too quickly
- Filter indicator light (if equipped)
- Visible discoloration on the filter
- It's been more than 6 months
Where to Find Your Refrigerator Air Filter
Air filter locations vary by brand and model. Here's where to look:
LG Refrigerators
Most Common Location: Upper back wall of fresh food compartment
Models with Air Filters:
- LT120F (FreshAir filter)
- LT220F
- ADQ73214404
How to Locate:
- Open the refrigerator door
- Look at the upper back wall
- Find a small rectangular or circular housing
- May be labeled "Fresh Air" or have a filter icon
Samsung Refrigerators
Most Common Location: Upper right or left interior wall
Models with Air Filters:
- DA02-00020B
- HAF-CIN/EXP
How to Locate:
- Check the upper corners of the fridge interior
- Look for a small grille or cover
- May be combined with water filter housing
Whirlpool/KitchenAid Refrigerators
Most Common Location: Back wall or ceiling of fresh food section
Models with Air Filters:
- AIR1 (FreshFlow)
- W10311524
- W10335147
How to Locate:
- Remove top shelf if necessary
- Check the back wall near the top
- Look for a small rectangular housing
GE & Frigidaire Refrigerators
Most Common Location: Upper back wall
Models with Air Filters:
- ODORFILTER (GE)
- PAULTRA2 (Frigidaire)
- EAFCBF (Frigidaire)
Kenmore Refrigerators
Most Common Location: Upper interior compartment
Models with Air Filters:
- 9918 Air Filter
- 469918 FreshFlow
Step-by-Step Air Filter Replacement Guide
Tools Needed:
- New air filter (model-specific)
- Clean cloth (optional)
- No tools required for most models!
Universal Replacement Steps:
Step 1: Locate the Filter Housing
- Refer to brand-specific locations above
- Check your owner's manual if unsure
- Look for a small grille or cover with a filter icon
Step 2: Remove the Old Filter
- Twist-lock models: Turn counterclockwise ¼ turn and pull
- Push-tab models: Press the release tab and pull straight out
- Slide-out models: Simply pull the filter straight out
- Grille models: Remove the grille cover first, then extract filter
Step 3: Inspect the Housing
- Wipe the housing area with a clean, damp cloth
- Remove any dust or debris
- Check for any damage to the housing
Step 4: Install the New Filter
- Remove all packaging from the new filter
- Note the directional arrows (if present)
- Twist-lock: Insert and turn clockwise ¼ turn until locked
- Push-tab: Push firmly until you hear a click
- Slide-out: Slide in until fully seated
Step 5: Reset the Indicator (if equipped)
- Press and hold the "Air Filter" or "Filter Reset" button
- Hold for 3 seconds until light changes color or turns off
- Some models reset automatically
Step 6: Verify Installation
- Gently tug on the filter to ensure it's secure
- Replace any grille covers
- Close the refrigerator door
Total Time: 3-5 minutes
Brand-Specific Replacement Instructions
LG Air Filter Replacement (LT120F)
LG-Specific Steps:
- Locate the Filter - Upper back wall of refrigerator compartment. Small rectangular housing with "Fresh Air" label.
- Remove Old Filter - Press the release tab on the housing. Pull the filter straight out. Dispose of old filter.
- Install New LT120F Filter - Remove packaging. Align the filter with the housing. Push firmly until it clicks into place.
- Reset Indicator - Press "Refrigerator" button on control panel. Hold for 3 seconds. Indicator light should turn off.
Pro Tip: Replace your LG air filter at the same time as your water filter for easy maintenance tracking.
Samsung Air Filter Replacement
Samsung-Specific Steps:
- Access the Filter - Open refrigerator door. Locate filter housing in upper right corner. May need to remove top shelf for access.
- Remove Old Filter - Turn filter counterclockwise ¼ turn. Pull straight out. Note: Some models have a push-button release.
- Install New Filter - Remove protective packaging. Insert filter into housing. Turn clockwise ¼ turn until locked.
- System Reset - Most Samsung models auto-reset. If not, press "Alarm/Hold 3 sec for Filter Reset"
Whirlpool/KitchenAid FreshFlow Filter
Whirlpool-Specific Steps:
- Locate FreshFlow Housing - Back wall of refrigerator, near top. May be behind top shelf.
- Remove Old Filter - Press release tab. Pull filter straight out. Dispose properly.
- Install New FreshFlow Filter - Unwrap new filter. Slide into housing until it clicks. Ensure it's fully seated.
- Reset Timer - Press "Filter Reset" button. Hold for 3 seconds. Light should turn green.
Frigidaire Air Filter Replacement
Frigidaire-Specific Steps:
- Locate Filter - Check upper back wall of fresh food compartment
- Remove Old PAULTRA2 Filter - Press release button and pull out
- Install New Filter - Insert new filter until it clicks into place
- Reset - Press and hold filter reset button for 3 seconds
Shop Frigidaire PAULTRA2 Air Filters
Air Filter vs. Water Filter: Key Differences
| Feature | Air Filter | Water Filter |
|---|---|---|
| Purpose | Removes odors, preserves food | Purifies drinking water |
| Location | Inside fridge compartment | Upper corner or base grille |
| Replacement | Every 6 months | Every 6 months |
| Cost | $10-$25 | $20-$50 |
| Necessity | Improves freshness | Essential for clean water |
| Indicator | Some models | Most models |
Important: Both filters should be replaced regularly for optimal refrigerator performance!
Maximizing Food Freshness Beyond Air Filters
Additional Tips:
✅ Proper food storage
- Store fruits and vegetables separately
- Use airtight containers for leftovers
- Keep raw meat on bottom shelf
✅ Temperature management
- Refrigerator: 37-40°F (3-4°C)
- Freezer: 0°F (-18°C)
- Use a thermometer to verify
✅ Regular cleaning
- Wipe spills immediately
- Deep clean every 3 months
- Remove expired items weekly
✅ Air circulation
- Don't overfill the fridge
- Leave space between items
- Keep vents unblocked
✅ Humidity control
- Use crisper drawers properly
- Adjust humidity settings for produce
- Keep leafy greens in high-humidity drawer
Where to Buy Replacement Air Filters
Buying Options:
- Manufacturer Direct - Guaranteed compatibility, higher price point, official warranty
- Authorized Retailers (Like Fits Your Fridge) - Competitive pricing, expert guidance, fast shipping, quality assurance
- Big Box Stores - Immediate availability, limited selection, higher prices
- Online Marketplaces - Wide selection, variable quality, check certifications carefully
What to Look For:
- Exact model number match
- NSF certification (if available)
- Customer reviews
- Return policy
- Expiration date
Browse All Refrigerator Air Filters
Troubleshooting Common Air Filter Issues
Problem: Filter Won't Stay in Place
Solutions:
- Ensure you're using the correct model
- Check that packaging was fully removed
- Inspect housing for damage
- Try removing and reinstalling
Problem: Odors Persist After Replacement
Solutions:
- Deep clean the refrigerator interior
- Check for spoiled food
- Verify filter is properly installed
- Consider replacing water filter too
- Check drain pan for buildup
Problem: Can't Find Filter Location
Solutions:
- Check owner's manual
- Look up model number online
- Contact manufacturer support
- Some models don't have air filters
Problem: Filter Indicator Won't Reset
Solutions:
- Hold reset button for full 3 seconds
- Try unplugging fridge for 30 seconds
- Check owner's manual for model-specific instructions
- Some models don't have indicators
Cost Comparison: OEM vs. Compatible Air Filters
| Filter Type | OEM Price | Compatible Price | Annual Cost (2 filters) |
|---|---|---|---|
| LG LT120F | $20-$25 | $12-$18 | $24-$36 |
| Samsung | $18-$22 | $10-$15 | $20-$30 |
| Whirlpool FreshFlow | $22-$28 | $15-$20 | $30-$40 |
| Frigidaire PAULTRA2 | $20-$26 | $12-$18 | $24-$36 |
Savings Tip: Buy a 2-pack or subscribe for automatic delivery to save 10-20%!
Environmental Considerations
Eco-Friendly Disposal:
- Check if your filter is recyclable
- Some contain activated carbon (compostable in some areas)
- Plastic housings may be recyclable (#5 or #7)
- Contact local recycling center for guidance
Sustainable Alternatives:
- Some brands offer refillable filter cartridges
- Baking soda boxes can supplement (not replace) filters
- Proper food storage reduces waste
Frequently Asked Questions
Q: Do all refrigerators have air filters?
A: No. Air filters are common in newer models and high-end refrigerators, but many basic models don't include them.
Q: Can I use baking soda instead of an air filter?
A: Baking soda helps with odors but doesn't replace a proper air filter. Use both for best results.
Q: Will a dirty air filter damage my refrigerator?
A: No, but it will reduce food freshness and allow odors to build up. It won't harm the appliance itself.
Q: Can I clean and reuse my air filter?
A: No. Air filters use activated carbon that becomes saturated and cannot be cleaned effectively.
Q: How do I know which air filter model I need?
A: Check your refrigerator's model number (inside the door or on the back) and consult your owner's manual or our compatibility guide.
Q: Do air filters help with mold prevention?
A: Yes, air filters with activated carbon can help reduce airborne bacteria and mold spores, creating a cleaner refrigerator environment.
Q: What's the difference between air filters and odor absorbers?
A: Air filters actively circulate and filter air through carbon media, while odor absorbers (like baking soda) passively absorb nearby odors. Filters are more effective.
Q: Can I run my refrigerator without an air filter?
A: Yes, your refrigerator will function normally, but you may notice more odors and faster food spoilage.
Conclusion
Replacing your refrigerator air filter is a quick 5-minute task that significantly improves food freshness and eliminates odors. By following this guide and replacing your air filter every 6 months alongside your water filter, you'll maximize your refrigerator's performance and keep your food fresher longer.
Key Takeaways:
- Replace air filters every 6 months for optimal performance
- Air filters remove odors and extend food freshness
- Installation takes just 3-5 minutes with no tools required
- Combine with proper food storage for best results
- Replace both air and water filters on the same schedule
Need the right air filter for your refrigerator? Browse our selection of refrigerator air filters or contact our team for expert assistance.
Save More: Check out our water and air filter combo packs for convenient bundle savings!