PuroAir 400 HEPA Replacement Filter 2 Pack
- 2 filters in the pack
- PuroAir 400 only for compatibility
- Activated carbon layer with polypropylene and polyurethane
- Pleated construction
- Allergen and odor reduction listed uses
- 16.85 x 2.56 x 12.6 inches L x W x thickness
- 30 day guarantee
Last refreshed Jun 15, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A two-pack of replacement filters for the PuroAir air purifier, pleated and built with activated carbon for odors. They suit that model only, and the listing gives no change interval.
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ASIN: B0C3GJCB35Model: 400Category: Air Purifier Filters
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Overview
An owner of a PuroAir air purifier gets two pleated replacement filters made with activated carbon, polypropylene and polyurethane, sized for that unit. They are meant to restore filtration after the old set is spent.
Keeping a PuroAir running with filters made for it is the reason to look, with carbon for odors and a pleated build for allergens. The limit is fit and life: they suit only that purifier, and no replacement interval is given.
Who it's for
Households already running the PuroAir against allergens or odors. Owners of other purifier brands or models, or shoppers wanting a whole-home furnace filter, should look elsewhere.
Pros and cons
- Made for the PuroAir
- Two filters in the pack
- Activated carbon for odors
- Residential use listed
- Fits one purifier model only
- Replacement interval not listed
- Guarantee period is short
Performance notes
Air passes through the pleated media, where particles are caught by the filter layers and odors are adsorbed by the activated carbon. More pleats give more surface area for the air to cross. Life depends on room air quality, and the listing gives no interval.
Specifications
| Brand | PuroAir |
|---|---|
| Model | 400 |
| Dimensions & fit | |
| Item weight | 1.7 pounds |
| Item Dimensions L x W x Thickness | 16.85 x 2.56 x 12.6 inches |
| Construction & materials | |
| Air Filter Construction | Pleated |
| Material Type | Activated Carbon, Polypropylene, Polyurethane |
| Compatibility & installation | |
| Compatible Air Purifier Models | PuroAir 400 air purifier |
| Included components | |
| Included Components | 2 PuroAir 400 replacement HEPA air filters |
| Warranty & support | |
| Warranty Description | 30 Day Guarantee |
| Other details | |
| Common Applications | Allergen reduction, high strength, odor reduction |
| Number of Items | 2 |
| Product Grade | Professional grade filtration |
Closest rivals on specs
Colorfullife Replacement Filter for Winix C545- Item Weight 1.7 vs 1.92 pounds (-11%)
Frequently asked questions
How do I install the PuroAir 400 replacement filters?
The listing gives no steps. They are sized for the PuroAir 400 purifier, so follow that unit's manual for opening the housing and seating the filters.
Will these filters fit other air purifiers?
No. The listing names the PuroAir 400 air purifier as the compatible model.
What is in the pack?
Two PuroAir 400 replacement HEPA air filters.
Are these furnace filters?
No. They are replacement filters for the PuroAir 400 purifier, even though the listing marks the HVAC field as residential.