Quick Answer: Is my air filter upside down?

Air filters have arrows printed on the sides of them that show you which way they are supposed to be installed. These arrows should be pointing in the direction that air flows through your system, which is away from the supply ducts and (typically) toward the blower.

Do air filters face up or down?

Assuming your unit is outside or in your attic, you want the arrow to face the unit. … Make the arrows face the ceiling or wall. If your filter is on the ceiling, the arrow should face the ceiling. If your filter is on the wall, the arrow should face the wall.

What happens if air filter is backwards?

By installing your filter backwards, air will have a harder time flowing through the filter and your air handler will have to work harder to make up for the loss of airflow. This could lead to higher utility bills and possibly damage your furnace or air conditioner.

Does it matter which way an air filter goes in car?

Technically, most “should” point down since the fan is below the filter and that sucks air in (contrary to what other claim that it “blows” air out) from the outside from inlets up top. So, you’d be safe having the cabin air filter arrows orientated such that’s it pointed down (i.e. in alignment with airflow).

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Does the arrow point up or down on an air filter?

For any air filter, whether it be for an air conditioner or a furnace, the ARROWS ALWAYS POINT IN THE DIRECTION OF AIR FLOW. When you install a new air filter into the AC return duct, the arrows face inward to specify which way the air is flowing.

How do I know which way the airflow is on my furnace?

If you are looking at a furnace filter, find the arrow that indicates the proper air flow direction. That arrow must always face toward the furnace and away from the return duct that carries the air in need of heating or cooling.

What is the direction of air flow?

Air always flows from a high-pressure area to a low-pressure area, much like water running downhill. Therefore, without an effective barrier, air outside a home at a higher pressure will always attempt to enter the home.

Which way should airflow arrow point?

Position the airflow arrow so that it points in the direction the air is flowing. In addition to clean air, filters also protect your HVAC system from debris and dirt buildup. The airflow arrow should point towards the furnace/blower motor to collect harmful particles before it reaches the furnace’s equipment.

What happens if furnace filter is upside down?

When a furnace filter is placed backwards, the fibers can’t do their job properly. This means your furnace has to work harder to generate the same air flow, resulting in increased energy costs. Particles are also allowed to build up irregularly, making the furnace working even harder to draw air.

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Why do air filters have a direction?

Air filters have arrows printed on the sides of them that show you which way they are supposed to be installed. These arrows should be pointing in the direction that air flows through your system, which is away from the supply ducts and (typically) toward the blower.