Where is best to place this unit? By the window? Middle of room?

Hi there! Thanks for reaching out! The unit can go anywhere just make sure it's about 6 inches away from any wall or furniture and that all windows and doors are shut.

where can I buy 411 filters, not available on amazon?

Hi there, Amazon does sell the Blueair filters on Amazon. In fact, Blueair has their own website on Amazon here: https://www.amazon.com/s?k=blueair+411+filter&crid=22JFA379FMLFB&sprefix=blueair%2Caps%2C245&ref=nb_sb_ss_ts-doa-p_11_7. Or just type in Blueair 411 filter when you're in Amazon and it goes straight to Blueair's Amazon web page. Hope this helps!

Can i use this with the blueair 411a max model? that model is wider at the bottom, not straight up and down like this filter. thanks!

No. Max units can only take Max filters for the specific model.

Our unit is on auto or night mode in our bedroom, w/ air quality light usually blue. After just 6 weeks, the replace filter reds are on. Normal???

Perhaps remove and clean the lint screen ( wrapped outside covering ) might clear it...plus examine the inside filter at same time. Be mindful of the general air quality in the room ....this unit might be Signalling an issue. Good health to you.

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Breathe Fresh, Live Bold! 🌟

SAFETY FIRST - Independently tested for performance and safety, with zero ozone emissions.
AUTOMATED CONVENIENCE - Subscribe and save on auto-delivered filters, ensuring you never run out.
BREATHE EASY LIVE CLEAN - Compatible with the entire Blue Pure 411 air purifier line for seamless integration.
LONG LASTING PERFORMANCE - Enjoy up to a year of fresh air with a filter designed for durability and efficiency.
PARTICLE PURIFICATION POWER - Removes airborne particles down to 0.1 microns, keeping your indoor air pristine.

The BLUEAIR Blue Pure 411 Auto Replacement Filter is designed for the entire Blue Pure 411 air purifier line, ensuring optimal air quality by removing airborne particles and household odors. With a lifespan of 6 to 12 months and an automated replacement option, this filter combines convenience with high performance, all while adhering to strict safety standards.

₱3265

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TrustScore 4.5 | 7,300+ reviews

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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Brand Name	BLUEAIR
Model Info	100929
Item Weight	8.1 ounces
Product Dimensions	1.9 x 8 x 11.1 inches
Item model number	100929
Is Discontinued By Manufacturer	No
Part Number	F411PACF100929
Compatible Device	Air Purifier
Material Type	Polypropylene
Included Components	1 particle filter with carbon mesh
Batteries Included?	No
Batteries Required?	No

BLUEAIR Blue Pure 411 Auto, 411, 411+ Genuine Replacement Filter, Particle and Activated Carbon, fits Blue Pure 411 Auto, 411 and 411+ Air Purifiers

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