Blueair Blue Pure 411 Series AllergenBlock Filter Pack of 11 | Genuine Replacement for 411, 411+ and 411Auto Air Purifiers

• The information below is per-pack only
• BOOST ALLERGEN PROTECTION: AllergenBlock defense layer neutralizes over 90% of the allergen properties such as sneeze-inducing dust, pollen and pet dander that can trigger discomfort*
• UPGRADE YOUR DEFENSES: Blue Pure 411 Auto Series AllergenBlock Blueair filter is designed for optimal performance; Compatible with 411, 411+ and 411Auto air purifier*
• SNEEZE-INDUCING ALLERGENS: Four layers of air purifier filtration; AllergenBlock defense layer neutralizes over 90% of pollen, dust and pet dander on the Blueair filter; Carbon layer reduces light household odors*
• AUTOMATED FILTER REPLACEMENT: Subscribe and save up to 10% on auto-delivered filters when replacement is needed; When used 24 hours a day, your Blueair filter should be replaced every 6 months to effectively reduce airborne pollutants and allergens

• Power Off Air Purifier — Ensure your Blue Pure 411, 411+, or 411Auto air purifier is unplugged from the power source before attempting to replace the filter.
• Remove Old Filter — Carefully detach the top housing or outer casing of your air purifier. Gently pull out the existing filter unit from the main body of the appliance.
• Install New Filter — Remove any protective packaging from the new Blueair AllergenBlock filter. Insert it into the air purifier, ensuring it sits securely and correctly aligned within the housing.
• Reassemble and Power On — Replace the outer casing or top housing. Plug the air purifier back into the power source and turn it on. Reset the filter replacement indicator if applicable.

Typical situations where Blueair Blue Pure 411 Series AllergenBlock Filter Pack of 11 | Genuine Replacement for 411 helps — illustrative scenarios, not customer reviews.