Blaux Portable AC Reviews: Personal Cool Air Conditioner Unit

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[@jbarster6462]

OMG where do I begin. I will give a point of view from a scientist and
engineer. This product is total nonsence. First I will explain a few
laws a physics and thermodynamics. There are two concepts in particular
that explains why this product and other similar do not work. Energy can
neither be created or destroyed it can only change form. Also cold does
not exist; there is heat and the absence of heat. Now if you take those
two concepts into consideration, hopefully you will understand.
These
small desktop air conditioners work on one of two principles. There is
evaporative cooling and the Peltier effect. This particular model uses
evaporative cooling. When water changes from the liquid to a vapour it
absorbs heat. This is what we call endothermic. When something absorbs
heat, the air next to it will feel cooler. This is what happens with
this unit. The water that evaporated will go into the air. That's
probably okay if you live in a very dry climate but increasing the
humidity in the room will eventually make you feel hotter because of the
humidex effect. Forget about using it in a humid climate because the
additional humidity will not only promote the growth of mold and mildew,
the water in the air will eventually condense. When water changes from a
vapour to a liquid, it releases heat hence what we call exothermic. So
the net effect is no change in the actual room temperature but perhaps
only temporary and very localized cooling, that is, less than a meter
from the unit. You are better off using a fan.
For those using the
Peltier effect, the cooling is generated by moving the heat from one
electrical junction to another. These are only 5% efficient so unless
you are moving the heat outside somewhere the net effect will be an
increase in temperature.
So how do real air conditioners work. They
are actually heat pumps that transfer the heat from inside the room to
outside the room. So they are actually not creating cold, but moving
heat.
It's the same principle as a refrigerator. Heat is being
pumped from inside the refrigerator to outside into the room. So those
who think that opening the refrigerator door will cool the room are
making a big mistake because the efficiency of refrigerators is
relatively low so that you are actually going to heat up the room by
doing so.
Some of you might say, what about those cold packs that you
use in first aid kits. Then again it's a endothermic chemical reaction
that absorbs heat away from your skin so that it feels cold.
You cannot create cold. You can only move heat.
So
don't waste your money. This product is nonsense and provide little if
any slight temporary benefit and if there is any slight benefit, there
is also larger negative consequences.

[@tumbalo71]

What's with all the fake reviews for this crap product??

[@glenpowell7154]

I agree with you. There aren’t any authentic reviews for this product for some reason. Weird! It is the only rechargeable air cooler that I could find on the market.

[@optimusprime3764]

Another advertisement. Not a legit review.