Allergy Defense
Fresh air through pollen season.
1Choose your filter size
2Choose your filtration level
3Choose quantity
4Choose delivery
Deliver every
- Size
- 20 × 25 × 1
- Filtration
- MERV 13 Max
- Quantity
- 1 filter
- Delivery
- Every 60 days
Total
$27.20
$27.20 / filter
You save $4.80
Pricing shown is indicative while variants are being finalized.
- Made in USA
- Fast shipping
- Easy replacements
Fits every major residential HVAC system.
- Carrier
- Trane
- Lennox
- Honeywell
- Bryant
- Rheem
- Goodman
- Aprilaire
- Trion
- York
Designed for
What it helps capture
Performance depends on your HVAC compatibility, airflow, filter size, usage, and replacement schedule. This is a product comparison, not a medical claim.
Long description
Allergy Defense is our go-to for households that feel every pollen count. Available in MERV 11 for balanced airflow or MERV 13 for higher capture, always designed to work with standard residential HVAC systems.
Reviews
4.9
Based on 1,543 verified reviews.
We swapped from a big-box filter and the difference was immediate, fewer sneezes on pollen days and no more mystery replacement dates.
The Wallace family
The subscription is the whole point. New filter shows up, old one comes out, done.
L. Nguyen
The packaging alone made this feel like a real product, not a generic disposable.
K. Ito
Simple to understand, easy to reorder, and it looks nice in the utility closet.
Andrea R.
