Hello, everyone.
This is Enta.

Man, this summer is crazy, isn't it? I wonder if next year will be just the same??

The temperature is over 35°C, and the humidity is stifling at over 70%.

When it comes to a lifesaver in situations like that… that’s right—work clothes with a fan.

"With this, even summer construction sites will be comfortable!"

Believing that, I took my place on the field. (A little encouragement)

But that day was different.

Starting around 11:00 a.m.…

For some reason, the breeze blowing from the fan on my back...Hot。

No, it's not hot at all... It feels like I'm inside a hair dryer...

The temperature has already surpassed body temperature.

Due to direct sunlight and the glare off the slope, the air I breathe in...Lukewarm。

So, work clothes with fans have evolved (?) from "cooling devices" to "heaters."

How did this happen?

• When the outside temperature exceeds body temperature, the cooling effect isn't just zero—it's actually counterproductive (as I've warned many times on my blog).

• The temperature inside my clothes skyrocketed due to direct sunlight and reflected heat

• The WBGT index chart is meaningless on-site

Solutions

• Optimizing the Work Sequence: In the morning, I'll tackle it from the shaded side (if that's the kind of situation, lol).

• Use with a Cooling Pack Vest: Circulates air while keeping it cool (so far, ice packs work best! Peltier modules aren't quite up to par)

• The Courage Not to Use It: Depending on the conditions, we might take off our work clothes with built-in fans and take a break under a parasol (those stupid major general contractors insist on making them mandatory!!)

Work clothes with built-in fans are definitely convenient.

But"All-Purpose"No, it isn't.

On a construction site in the middle of summer, depending on the situation,Just a warm-air blowerThat can happen sometimes.

Everyone, don't rely solely on work clothes with built-in fans—remember to follow the three key principles: taking breaks, staying hydrated, and planning your work!

Let's have a general contractor employee work there all day.

Especially safety managers. (It’s important to understand today’s work sites—they’re different from what they used to be.)

I understand that the company has its own standards.

But you have to remember that there's a possibility it could kill someone.

If you force someone to do that, please don’t say, “I never said that,” if an accident happens! (Something like that happened recently.)

Well then, let's make safety our top priority again today.

See you later.