What Problems Does Humidity Cause? Survey on Rainy Season Worries and Countermeasures [1000 Person Survey]

What is humidity?

Humidity in the home is a concern during the damp rainy season.

Humidity refers to water vapor contained in the air. Air can hold more water vapor at higher temperatures, so humidity tends to be higher during warmer periods.

Furthermore, in homes, humidity tends to accumulate not only in warm areas but also in places with poor air circulation. Areas with poor ventilation, such as closets, wardrobes, and corners of rooms, require particular attention.

NaviT conducted a survey on "humidity" targeting 1000 monitor members, primarily housewives nationwide.

・Survey Period: April 2026

・Survey Organization: NaviT Inc.

・Survey Target: Men and women aged 20s to 80s

・Valid Responses: 1000

・Survey Method: Web

Over 90% Have Experienced Humidity Issues

【Survey】

Have you ever experienced humidity? (Target: 1,000 people)

Regarding the question "Have you ever experienced humidity?", the results were 94.3% "Yes" and 2.6% "No."

Over 90% Have Had Problems Due to Humidity

【Survey】

Have you had problems due to humidity? (Target: 1,000 people)

Regarding the question "Have you had problems due to humidity?", the results were 91.3% "Yes" and 5.0% "No."

Problems Caused by Humidity Include "Mold" and "Laundry Not Drying"

【Survey】

What problems do you have due to humidity? (Multiple answers allowed) *Number of responses: 3,742

When asked "What problems do you have due to humidity?" with multiple answers allowed, "mold" was cited by 697 people, followed by "laundry not drying" with 622 people, and "condensation" with 486 people. It appears that many people are troubled by mold, which tends to occur with increased humidity.

Humidity Countermeasures Taken Include "Opening Windows for Ventilation"

【Survey】

What are you doing for humidity countermeasures? (Multiple answers allowed) *Number of responses: 2,453

When asked "What are you doing for humidity countermeasures?" with multiple answers allowed, "opening windows for ventilation" was cited by 589 people, followed by "dehumidifying with air conditioning" with 469 people, and "using the ventilation fan" with 402 people. It seems that many people open windows for ventilation as a humidity countermeasure.

Tell Us About Humidity Countermeasures You Found Effective!

This time, we conducted a free-response question asking, "Please tell us about humidity countermeasures you found effective." We are introducing some responses exactly as they were written.

"I feel it's effective to arrange things so that air can pass through."

"I dry laundry by blowing a fan on it. Also, I open the closet and dehumidify with the air conditioner."

"When condensation occurs, leaving the window slightly open can prevent it."

Many responses included "opening windows" and "ventilating." It seems that many people feel that improving air circulation is effective, rather than using special items.

Next, there were also many voices mentioning the use of air conditioner dehumidifying functions and dehumidifiers. This suggests that simple and easily effective methods are favored for humidity countermeasures.

Additionally, many responses mentioned placing dehumidifiers in storage spaces. It appears that not only overall room humidity but also mold prevention for clothing and closets is a priority for many people.

Start Humidity Countermeasures Small!

Humidity countermeasures can be started with small daily efforts, without special tools or expensive appliances.

This survey also revealed that many people are implementing easy countermeasures such as "opening windows for ventilation," "using the air conditioner's dehumidifying function," and "placing dehumidifiers." All of these are methods that can be adopted immediately.

Leaving humidity unchecked can lead to various living problems, such as the growth of mold and dust mites, and the smell of damp laundry.

To spend the damp rainy season comfortably, why not try incorporating humidity countermeasures that suit your home environment and lifestyle?

Start with opening windows to exchange air, and begin countermeasures you can implement today.

About "1000 Person Survey"

"1000 Person Survey" is a survey service with response monitors. 1000 people out of 63,400 monitor members nationwide, primarily housewives, will answer the survey. As it is a web service with card payment, it operates 24/7/365, without hindering the speed of business. The assist function with presets allows even beginners to start surveys easily.

Features of "1000 Person Survey"

1. Edit questions yourself using the assist function

2. Housewives nationwide (63,400 people, 20s and up) respond in as little as 2 days

3. Data reports and text mining also available (optional)

4. Surveys can be conducted anytime with card payment

"1000 Person Survey" Price List

Please use NaviT's "1000 Person Survey"!

★Details of "1000 Person Survey" here★

https://survey.navit-research.jp/

★Application for "1000 Person Survey" here★

https://survey.navit-research.jp/welcome/sign_up

【Company Profile】

Company Name: NaviT Inc.

Representative: Yasuyo Fukui, President and Representative Director

Established: January 2001

Location: Kudan South Side Square 8F, 1-5-5 Kudanminami, Chiyoda-ku, Tokyo

TEL: 03-5215-5713

FAX: 03-5215-5702

URL: https://www.navit-j.com/

E-Mail: webmaster@navit-j.com

【Request for Citation/Reprint of this Release】

・Please contact NaviT Inc. Public Relations in advance.

・Please clearly state the credit and link to the source.

<Example> "According to the survey results conducted by NaviT Inc. (Data Utilization Now)...

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