Wipe them off. If they are particularlay soiled, remove them and soak them in a bucket of water and ammonia. If you are going to go that far why not replace them?
If dust is coming from your air conditioner, you did not put in a filter. You will ruin your air conditioner running it without a filter. Also, the vents will get dusty. You need to clean them.
The most common cause of an air conditioner not blowing air is a plugged filter. Be sure your filter is clean.
The air conditioner condenses water from the air. If the air conditioner is not draining correctly this water will spray though the system. Water and moisture are needed to support mould growth. You need to clean and repair your air conditioner drain system.
If central air conditioner turns on but is not blowing through the vents, check the filter. If it is dirty, change it. Change the thermostat into cool, this will defrost the air conditioner.
The air of your Chevy trailblazer 2004 blow out of the front vents when the air conditioner is on because the air condition is faulty and it needs repair.
An air conditioner evaporator is the part of the a/c system that the heat in your car transfers to causing cool air to blow from your vents. The blower is in front of it and it sucks air from the inside of your car and across the evaporator then blows out your vents.
Moisture in the air condensing into mist.
There are usually vents under the tail lights.
I'm investigating this as well. I have a 2008 and have been told the air conditioner is only off when you have the vents on the floor only. Still checking this out.
Window air conditioner units need to be taken care of to work in the right way. Before the summer months, take the filter out of the air conditioner and replace it with a new one. If it is not that dirty, then you might be able to clean it. Check the vents to make sure there is nothing in them like dirt or trash. If there is, use a vacuum cleaner to get the dirt out.
Vacuum leak
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