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Q: Which side should face out if used as hvac filter? if there was an arrow on the side for airflow, would the white side be the top of arrow or bottom?

Direction of air flow is through the white first, blue second. White side faces out, blue in when using as an intake filter.

Q: Does the air flow through the white side first?

This is an intake filter. White side faces out, blue side in. So yes, air will go through the white side first and blue second. White catches the larger particles, blue smaller particles. You want the filter to catch the big particles first when using this material. The smaller particles get trapped deeper into the filter media. Merv rating is 6. The higher the Merv rating the more it will filter out.

Q: Blue side or white side of media filter out when installing?

White side (1st stage) out , blue side in

Q: Please be more precise! when i drop down the cold air (metal) return vent to replace filter, which color should i be seeing? white or blue?

White side is air in and blue is facing the unit return for HVAC I know we make them

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Specifications

Brand Name	AirstarFilters
Model Info	BW1_10FT
Item Weight	6 ounces
Item model number	BW1_10FT
Is Discontinued By Manufacturer	No
Part Number	BW1_10FT_ver2
Color	White,Blue,Green
Compatible Device	Likely HVAC systems (Furnace, Air Conditioner, Heat Pump, etc.)
Material Type	Polyester
Batteries Included?	No
Batteries Required?	No

Have a Question? See What Others Asked

Which side should face out if used as hvac filter? if there was an arrow on the side for airflow, would the white side be the top of arrow or bottom?

Does the air flow through the white side first?

Blue side or white side of media filter out when installing?

Please be more precise! when i drop down the cold air (metal) return vent to replace filter, which color should i be seeing? white or blue?

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10 Feet of Blue and White Air Filter Media Roll , MERV6 Polyester Media - 25" Wide

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