Question 1

What is the square foot coverage?

Accepted Answer

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.

Question 2

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

Accepted Answer

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.

Question 3

inlet and outlet duct size?

Accepted Answer

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

Question 4

Where can i buy the hepa filter for this unit?

Accepted Answer

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

Colour	Blue
Brand	BlueDri
Floor Area	550 Square Feet
Particle Retention Size	0.3 Micron
UPC	766287111999 875333000108
Global Trade Identification Number	00766287111999
Manufacturer	BlueDri
Color	Blue
Shipping Weight	18.17 Kilograms
Item Model Number	BD-AS-550-BL
Item Part Number	BD-AS-550-BL
Is Assembly Required	No
Primary material	Rotomould
Capacity	Single Unit
Number of Pieces	1

BlueDri BD-AS-550-BL Negative Machine Airbourne Cleaner HEPA Scrubber Water Damage Restoration Equipment Air Purifier, Blue

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