Is there something i can put on the windshield to keep it from fogging up?

Phokus

Lifer
Nov 20, 1999
22,994
779
126
The windshield defogger in my car has a weird smell to it and i don't like turning it on... is there something i can put on the windshield to keep it from fogging up?
 

DaWhim

Lifer
Feb 3, 2003
12,985
1
81
you have to know why there are fog forming inside your car. it is the moisture.

IIRC, someone suggested keeping those foam you use for shipping inside the car help. don't quote me on that though.
 

FoBoT

No Lifer
Apr 30, 2001
63,084
15
81
fobot.com
is there a mouse stuck in the a/c ?
you have to get it fixed
you could try rubbing vasoline all over it
 

Judgement

Diamond Member
Feb 8, 2001
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Originally posted by: KLin
Just run your air conditioning.

qft

the air temp can still be set to warm... turning the ac on removes moisture from the air regardless of if you have it set to blow cold/warm air


I couldn't tell you why it works, but it does
 

FoBoT

No Lifer
Apr 30, 2001
63,084
15
81
fobot.com
when you put your car on defrost, it 'normally' runs the a/c , that is how it dehumidifies the air, thus removing the moisture from the car

i am sure this is a mouse related a/c problem, where is that guy that knows about this stuff when you need him
 

Rubycon

Madame President
Aug 10, 2005
17,768
485
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Originally posted by: Judgement

I couldn't tell you why it works, but it does

Think of a dehumidifier. It's basically an a/c unit with the evaporator and condenser coils in the same path. When you turn the slider on your climate control to the red you're opening the damper flap that allows air to go through the heater core. So even though the air is warm coming out of the vents it is also much drier.

 

Judgement

Diamond Member
Feb 8, 2001
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Originally posted by: Rubycon
Originally posted by: Judgement

I couldn't tell you why it works, but it does

Think of a dehumidifier. It's basically an a/c unit with the evaporator and condenser coils in the same path. When you turn the slider on your climate control to the red you're opening the damper flap that allows air to go through the heater core. So even though the air is warm coming out of the vents it is also much drier.

I've never had to use a dehumidifier

You're saying the air is cooled which causes the moisture in the air to condense, and thus the water is no longer in the air.. at this point it passes the heater core which warms the 'dry' air back up?

This makes sense. I guess the air coming out would just be slightly cooler than if the AC was not on.
 

Kelvrick

Lifer
Feb 14, 2001
18,422
5
81
ANyway, back to the OP's question, the Rain X guys make a fog product too, but reviews aren't very favorable.
 

Jeff7

Lifer
Jan 4, 2001
41,596
20
81
Originally posted by: Judgement
Originally posted by: Rubycon
Originally posted by: Judgement

I couldn't tell you why it works, but it does

Think of a dehumidifier. It's basically an a/c unit with the evaporator and condenser coils in the same path. When you turn the slider on your climate control to the red you're opening the damper flap that allows air to go through the heater core. So even though the air is warm coming out of the vents it is also much drier.

I've never had to use a dehumidifier

You're saying the air is cooled which causes the moisture in the air to condense, and thus the water is no longer in the air.. at this point it passes the heater core which warms the 'dry' air back up?

This makes sense. I guess the air coming out would just be slightly cooler than if the AC was not on.
In a dehumidifier, air is passed over the cold coils - think of a cold glass during a humid summer day. Moisture condenses on it. Same with the cold coils. Moisture condenses on them, thus taking that water out of the air. Where does that heat go? It goes to the other radiator. In a dehumidifier, that radiator is inside the house too, as its only goal is moisture removal. In an air conditioner, the warm coils are outside, thus dumping that excess heat out of the house.
 

Cdubneeddeal

Diamond Member
Oct 22, 2003
7,473
3
81
Originally posted by: AnonymouseUser
Originally posted by: Kelvrick
ANyway, back to the OP's question, the Rain X guys make a fog product too, but reviews aren't very favorable.

Stay away from that shit.

Yeah. I tried that once when I was 19 when I got my first car. Will never use that stuff again. Worked the opposite of what it was intended to do.