Enhanced allergen protection for everyday spaces

Upgrade your defenses with the Blueair Blue Pure 411 Auto Series AllergenBlock Filter. This Genuine replacement is designed to be compatible with 411, 411+, and 411Auto purifiers, helping you create a more comfortable living space. The AllergenBlock defense layer targets common inanimate allergens, including pollen, dust, and pet dander, with testing data suggesting strong performance on the filter media within 60 minutes. ELISA testing shows AllergenBlock targets pollen (Cry J1), pet dander (Fel d1, Can F1), and dust mite matter (Der f1) on the filter media within an hour.

Four layers of filtration work together to manage a broad range of airborne particles. The AllergenBlock layer is complemented by a carbon layer that helps reduce light household odors, contributing to a fresher-sounding room. The result is a filtration system that can respond to daily changes in air quality, from busy mornings to quiet evenings.

Key benefits at a glance

• AllergenBlock protection: neutralizes a majority of allergen properties—pollen, dust, and pet dander—as part of the filter media.
• Four-layer filtration: an integrated approach that targets multiple particle sizes and odors via a dedicated carbon layer.
• Designed for 411 Auto compatibility: optimized for Blue Pure 411, 411+, and 411Auto purifiers for easy upgrades.
• Automated replacement options: automated delivery helps ensure you have fresh filters when needed, with savings on subscriptions where available.
• Maintenance cadence: for 24/7 use, a typical replacement cadence is about every 6 months to maintain effective filtration.

In real-life use, you might notice a calmer-feeling space in rooms that see pet activity, pollen seasons, or dusty days. The combination of AllergenBlock and the carbon layer helps address both particulate matter and mild odors, while the four-layer approach adds redundancy for everyday air management. This is not a medical device, but it is designed to support everyday comfort by providing a dependable filtration option alongside your Blueair purifier.

Why choose Blue Pure 411 Auto Series AllergenBlock Filter?

Choosing this genuine replacement means aligning with the Blueair design philosophy: simple, effective filtration integrated into your existing purifier. The goal is to support your space with better air quality and consistent performance without complex maintenance.

What to expect with regular use

• Improved air handling in common living areas and bedrooms.
• Quiet, reliable operation alongside your purifier’s existing features.
• Easy installation and straightforward maintenance with compatible models.