H13 HEPA Filter for Airfire AP404 Tower Air Purifier (Black, Discontinued Model)
H13 True HEPA · Original Airfire Filter
- True H13 HEPA Filtration
- Designed for AP404 Air Purifier
- Replacement cycle: 6-8 months
- Precio
- $39.99
For the discontinued black tower AP404 only
This filter fits the large, black, floor-standing AP404 air purifier (now discontinued).
Have the slim AP404 with WiFi and a display screen? That model uses a different filter — get the correct filter here →
Product Detail
- Advanced Filtration: Features a 3-stage filtration system, including a pre-filter, a true H13 HEPA filter, and an activated carbon filter.
- HEPA Standard: Utilizes an H13 True HEPA filter, designed for effective air purification.
- Extended Lifespan: Recommended replacement every 5-6 months, depending on environmental conditions and usage frequency.
- Air Quality: Ensures cleaner, fresher air by equipping the air purifier with a high-quality HEPA filter.
- Original Component: This is an original replacement filter, specifically designed for CADR 500+ m/h air purifiers.
- Suitable for AP404
Product Manual
✓ Confirmed fit — Airfire AP404 air purifier
- Filter type: True HEPA H13
- Design: one-piece filter + base (a single integrated unit — not a loose cylinder)
- Replace: every 6–8 months (about 3,000 hours)
Not sure this is your model? The AP404 uses a one-piece filter that twist-locks into the base. If your unit unlocks with a twist handle underneath and the filter and base come out as one piece, this is the right replacement.
When to replace your filter
- Replace every 6–8 months, or roughly every 3,000 hours of use.
- Your purifier's HEPA indicator light turns on when it's time.
- Replace sooner if you notice weaker airflow, less odor removal, or you run it in heavy smoke or pollution.
- After fitting a new filter, hold the HEPA button for 5 seconds to reset the indicator.
How to replace the filter
Safety first: unplug the power adapter before you start.
- Rotate the twist handle on the base counterclockwise to unlock.
- Lift out the old filter.
- Remove the plastic wrap from the new filter. Running the purifier with the wrap still on blocks airflow and can cause it to overheat.
- Place the new filter in and refit the base cover.
- Turn the filter buckle clockwise until it clicks into place. Plug back in, then reset the HEPA indicator.
Keep your filter working between changes
- Vacuum the pre-filter about once a month.
- Brush or vacuum the white side of the filter monthly to clear hair and dust.
- Never wash the filter with water — it damages the HEPA material.
AP404 quick specs
| Filter | True HEPA H13, one-piece |
| Replacement | Every 6–8 months (~3,000 h) |
| Power | 100–240V, 50/60Hz, 48W |
| Noise | 25–60 dB |
| Coverage | 3500 sq. ft. |
Troubleshooting
- Replace light still on after changing the filter? Hold the HEPA button for 5 seconds to reset it.
- Reduced airflow or odor removal? Vacuum the pre-filter, or replace the filter if it's due.
- Not feeling the effect? Check the filter is seated and locked correctly, and that the intakes aren't blocked.
Shipping Information
Shipping Information
- We offer free standard shipping on all AIRFIRE orders within the United States.
- Orders are processed within 1–2 business days.
- Standard shipping takes 5–7 business days depending on your location.
- Every order comes with a tracking number so you can follow your package in real time.
- Not satisfied? You can return or exchange your product within 30 days of delivery.
Note: Currently, AIRFIRE products are available only for U.S. customers. International shipping will be launched soon.
About Us
AIRFIRE is a brand dedicated to creating high-quality, eco-friendly products that improve everyday life. Our mission is simple: Create experiences that exceed user expectations.
When you choose AIRFIRE, you’re not just buying a product — you’re joining a community that values trust, care, and innovation.
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