It really depends. Check the air temperature at the furnace. Get a reading of the return air temp where you put the filter. Next, take a reading in the supply duct( where air from the furnace goes towards the rooms) You should have a 14-17 degree drop. It will vary a little due to humidity.
Is this vent in a car or house??
They are an undersea thermal vent or hydrothermal vent.
It is a geyser in the sea floor
if a pen or pencil fell down the defrost, this could be it... and you'll have to dismantle the whole thing to reach it... Or you can do this: remove the center counsel once that is out of the way remove the push/pull plastic guard and you should see a floor vent, move the screws holding the floor vent, pull out the floor vent and you should see a motor on your right passenger area with a white circle, its held on by 3 screws remove the screws and replace
is it possible that the vent hose are disconected?
Leaking heater core
A chimney like vent on the ocean floor. It is a hydrothermal vent.
Replacing floor vents is a fairly easy process. Each are usually held to the floor by two screws, so remove those. Then pull out the vent from the cavity. If you measure this cavity you will know what size you need to replace the vent taken out.
Floor registers are not the registers you find checking out at a grocery store. Floor registers are the cover from the heating vent in a home or business.
You go to the big air vent on the top floor of the night club place all the way to the left the use the goggles and should see a person in the air vent thing, hope this helps :)
The ideal location would be close to the floor, but the house structure limits location. It is common to see air return grilles on walls or ceilings.
High temperature .