【Ouchi ni Pro】Survey on the Relationship Between Indoor Laundry Drying Odor and Air Conditioner Dirt

Survey Summary

No respondents avoided indoor drying of laundry during the rainy season, with 29% doing it 'almost every day'.

Only 15% 'almost always operate' their air conditioner during indoor drying, while 34% use fans or dehumidifiers.

60% operate their air conditioner in 'dehumidify' mode during indoor drying, the most common setting.

Nearly half of respondents consider increasing the frequency of air conditioner cleaning, factoring in the risks posed by indoor drying.

Overview of the Survey on the Relationship Between Indoor Drying Odor and Air Conditioner Dirt

To provide more useful information to those concerned about air conditioner cleaning, Ouchi ni Pro conducted an original survey titled 'Survey on the Relationship Between Indoor Drying Odor and Air Conditioner Dirt'. The survey details are as follows:

Survey Purpose

Questionnaire on the relationship between indoor drying odor and air conditioner dirt

Tools Used

CrowdWorks

Number of Respondents

100 (Male: 36, Female: 62, No response: 2)

Age Groups

Teens: 1, 20s: 10, 30s: 31, 40s: 36, 50s: 17, 60+: 5

Method

Online research

Survey Period

June 2026

Target Region

Japan

Survey details are also available on this page:

[Original Survey] Survey on the Relationship Between Indoor Drying Odor and Air Conditioner Dirt | Ouchi ni Pro

How often do you dry laundry indoors at home during the rainy season?

Item

Number of Respondents

Almost every day

29

3–4 times per week

23

1–2 times per week

16

Only on bad weather days

32

Do not dry indoors

0

Do you also operate your room's air conditioner while drying laundry indoors?

Item

Number of Respondents

Operate almost every time

15

Operate occasionally

50

Use fan or dehumidifier

34

No air conditioner in the room / do not dry indoors

1

Which mode do you use your air conditioner in during indoor drying?

Item

Number of Respondents

Cooling

24

Dehumidify

60

Fan-only

12

Drying mode

4

Were you aware that air conditioners in rooms where laundry is dried absorb more moisture and lint from clothes than usual?

Item

Number of Respondents

Knew

18

Did not know

82

What measures do you take to prevent internal dirt in your air conditioner due to indoor drying?

Item

Number of Respondents

Use internal self-cleaning function

15

Regular filter cleaning

31

Use dehumidifier or circulator fan

17

Keep laundry away from air conditioner

3

Take no particular action

34

Considering the risks indoor drying poses to your air conditioner, does it increase your likelihood of considering air conditioner cleaning?

Item

Number of Respondents

Want to request immediately

2

Want to request before next usage season

46

Frequency remains unchanged

34

Will not request / clean myself

18

About Ouchi ni Pro

'Ouchi ni Pro' is a comparison and booking site that allows users to safely select home-related services from trusted professional providers.

We list a wide range of life-essential services such as air conditioner cleaning, bathroom cleaning, house cleaning, and estate clearance. From over 4,000 registered providers nationwide, users can efficiently find suitable providers based on service area, price range, service details, and over 20,000 user reviews.

Review information reflects actual user evaluations and feedback, allowing even first-time users to confidently consider our services.

We are currently running a review submission campaign, offering a digital gift worth up to 1,000 yen to participants. 'Ouchi ni Pro' supports the creation of more comfortable living environments through reliable and satisfying provider selection.

Service Areas

Hokkaido / Aomori / Iwate / Miyagi / Akita / Yamagata / Fukushima / Ibaraki / Tochigi / Gunma / Saitama / Chiba / Tokyo / Kanagawa / Niigata / Toyama / Ishikawa / Fukui / Yamanashi / Nagano / Gifu / Shizuoka / Aichi / Mie / Shiga / Kyoto / Osaka / Hyogo / Nara / Wakayama / Tottori / Shimane / Okayama / Hiroshima / Yamaguchi / Tokushima / Kagawa / Ehime / Kochi / Fukuoka / Saga / Nagasaki / Kumamoto / Oita / Miyazaki / Kagoshima / Okinawa

About Zero Accel Co., Ltd.

Zero Accel Co., Ltd. operates its business with the mission of 'creating new value to enrich people's lives.' The company runs diverse businesses including pet food, cosmetics, shared offices, web media operations, and advertising. Leveraging extensive experience in web marketing, it is expanding its operations toward an IPO.

Headquarters

5-3-23 Kojimachi, Chiyoda-ku, Tokyo, Nippon TV Yotsuya Building, 10F

Representative

Yuki Daifuku, CEO

Established

April 2020

Business Activities

Media operations

Official website: https://zero-accel.co.jp/

Affiliated Companies

Zero Ad Co., Ltd.

Corporate site: https://zero-ad.co.jp/

Service site: https://zero-ads.jp/

BimoRa Co., Ltd.

Official site: https://bimora.co.jp/

Official EC: https://bimora.jp/

Wan-Plate Co., Ltd.

Official site: https://wan-plate.co.jp/

Official EC: https://wan-plate.jp/

The Building Co., Ltd.

Corporate site: https://the-building.co.jp/

Akasaka Station Front Store: https://the-building.co.jp/lp/daifuku/

Showa-dori Store: https://the-from.com/

Related Ventures

GLOW-NAVI

https://glownavi.com/

Coco-Moola

https://cc-moola.com/

Zero Media

https://zero-medi.com