What is the square foot coverage?

You are asking a question in square footage for a product that operates in cubic feet, or volume. So the square footage coverage for this unit is dependent on the height of the ceilings. The unit is also rated in terms of time, in this case, Cubic Feet per Minute CFM). Therefore, the answer to your question also depends on how often you want the air in the area to be exchanged. However, the more practical answer to your question is that this unit is designed to work in small areas of a house, like a bedroom or living room. For example, if a room is 12 ft. wide x 12 ft. deep x 9 ft. high, then 12x12x9 = 1,300 cubic feet. The theory is that the AS-550 will scrub the air in a room this size in a little over a couple of minutes (1300 cubic feet / 550 cubic feet per minute = 2.36 minutes to make one full exchange of the air). Finally, these ratings only make any sense if the air scrubber is being used as a negative air machine (meaning filtered air is being pumped outside through ducting attached to the scrubber, and the room has been adequately sealed with plastic, etc.). If the air scrubber is just set up to run in a room without the duct work to send the filtered air outside, then the scrubber is scrubbing both filtered and non-filtered air. I'm using my AS-550 for a basement demolition (1,000 sf x 7 ft. ceilings) and it works fine... if I give it enough time. If money were not a concern I would have bought a unit rated at 2,000 CFM, but that's a much higher price point. In summary, my opinion is that the AS-550 is excellent for a large bedroom or average living room.

does this come with filters, the answer below does not answer this question?

Margaret is partially correct: do not vacuum the hepa filter unless using a hepa vacuum. However, you can take a non hepa vacuum and clean it outside. Or, with a compressor set to 40psi, take the filter outside and blow it out from the backside (the reverse of air flow). Regardless of the method , it is best to clean filters outside. Wear a mask while cleaning it.

inlet and outlet duct size?

Thank you for contacting us regarding the AS-550. The duct sizes are as follows. INLET: 11.75″ OUTLET: 7.75″.

Where can i buy the hepa filter for this unit?

The Hepa Filter can be purchased at https://www.amazon.com/B-Air-Scrubber-Stage-Filter-Purifiers/dp/B06VV4794X/ref=sr_1_1?ie=UTF8&qid=1536166542&sr=8-1&keywords=B06VV4794X

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BlueDriAir Shield 550 HEPA Air Scrubber, Water Damage Restoration Equipment Air Purifier, Covers 1400 Sq. Ft, Daisy Chain Capable, For Commercial Use, Blue, BD-AS-550

BlueDriAir Shield 550 HEPA Air Scrubber, Water Damage Restoration Equipment Air Purifier, Covers 1400 Sq. Ft, Daisy Chain Capable, For Commercial Use, Blue, BD-AS-550

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Product ID: 33238792

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Color
Blue
Brand
BlueDri
Product Dimensions
15"D x 24"W x
Specification Met
ETL Certified
Particle Retention Size
0.3 Micron

💨40% more CFM airflow

🔗Daisy chain capable for scalable coverage

🛡️99.97% HEPA filtration @ 0.3 microns

Description

💨 Breathe Bold: Power-Packed Purity for Every Professional Space

SCALABLE COVERAGE - Daisy chain capability lets you link multiple units to purify up to 1400 sq. ft seamlessly
ODOR CONTROL READY - Optional carbon filter eliminates stubborn odors—perfect for salons, print shops, and restoration
TRIPLE STAGE FILTRATION - Pre-filter plus HEPA filter combo traps large debris and microscopic particles
UNMATCHED AIRFLOW POWER - Delivers 40% more clean air volume than competitors for rapid purification
COMMERCIAL GRADE DURABILITY - Engineered with a single-piece housing for rugged, long-lasting use on job sites

The BlueDri Air Shield 550 is a commercial-grade HEPA air scrubber designed for heavy-duty environments like water damage restoration and construction sites. It boasts 40% higher airflow than competitors, a triple-stage filtration system removing 99.97% of particles down to 0.3 microns, and daisy chain capability to cover up to 1400 sq. ft. Built tough with a single-piece housing and ETL certification, it’s engineered for reliability and scalable air purification in demanding professional settings.

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Item Weight	39 Pounds
Item Dimensions D x W x H	15"D x 24"W x 23"H
Color	Blue
Specification Met	ETL Certified
Particle Retention Size	0.3 Micron
Controller Type	Button Control
Filter Type	HEPA
Floor Area	550 Square Feet
Power Source	Corded Electric
Control Method	Touch

BlueDriAir Shield 550 HEPA Air Scrubber, Water Damage Restoration Equipment Air Purifier, Covers 1400 Sq. Ft, Daisy Chain Capable, For Commercial Use, Blue, BD-AS-550

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