Review: Honeywell 20x20x1 Allergen Plus (MERV 11)

2026-01-31

Quick take

A HVAC filter (1-inch) from Honeywell aimed at balanced filtration and airflow.

Your take

[Add your opinion and any personal testing notes here.]

Key specs

• Price range: varies
• Dimensions: 19.88 x 19.88 x 0.75 in (actual)
• Materials: electrostatic pleated
• Power/Battery:
• Warranty:

Who it's for

balanced filtration and airflow

Pros

• good airflow
• common sizes

Cons

• not as high filtration as MERV 13

Alternatives

Filtrete MERV 13; Filterbuy MERV 13

Scores

• Overall: /10
• Value: /10
• Durability: /10
• Usability: /10
• Niche-specific: /10

What I verified

Add your verification: fit, airflow, dust capture after 30-90 days.

Evidence tier

B

Sources

• Official product page:
• Retailer page: https://www.homedepot.com/p/203145810
• Affiliate primary: https://www.homedepot.com/p/203145810
• Affiliate secondary:
• Evidence (official):
• Evidence (retailer): https://www.homedepot.com/p/203145810
• Evidence (third-party):