The Hidden Dangers of Dust in Your Home's Ventilation System

Beware of Hidden Dirt in Your Home! Cleaning Ventilation Ducts Matters

Asuka Service, a maintenance firm based in Osaka, has intensified its campaign to raise awareness about the necessary cleaning and inspection of ventilation systems, specifically focusing on ventilation ducts. These ducts can harbor dust and contaminants that may significantly influence your living conditions.

In a survey conducted in July 2025 involving 474 respondents, around 60% of the participants admitted to being unaware of ventilation duct cleaning services. Asuka Service aims to educate the public about the differences between ventilation ducts and exhaust fans to help create a world without ventilation issues.

Understanding the Roles of Ventilation Ducts and Exhaust Fans

While many people regularly clean the exhaust fans in kitchens, bathrooms, and laundry rooms, the ventilation ducts that connect to these fans remain largely neglected. The following table outlines the main differences between the two:

Item	Ventilation Duct	Exhaust Fan
----	---------	---------
Role	Passageway for indoor air to outdoor	Fan that expels indoor air to the outside
Location	From attic to outdoor exhaust outlet	Walls or ceilings of bathrooms and kitchens
Cleaning Frequency	Every 5 years	Every year
Maintenance	Requires professional cleaning	Some upkeep can be done personally

To visualize their functions, think of the exhaust fan as the 'motor' that pulls air in; meanwhile, the ventilation duct serves as the 'passageway' that leads this air outside. If the duct becomes blocked, even a perfectly cleaned exhaust fan will struggle to expel air effectively.

Verifying Effectiveness with Airflow Measurements

Asuka Service utilizes patented equipment and expertise to clean and disinfect ducts, measuring airflow with an anemometer to quantify improvements. Common cleaning services often overlook deep-set oil and residue, but Asuka Service’s approach successfully eliminates such build-up.

Data Example Before and After Cleaning:

- Before Cleaning: Airflow Speed 1.0 m/s
- After Cleaning: Airflow Speed 5.1 m/s

This exemplifies a fivefold increase in airflow, leading to improved air circulation and a reduction in musty odors and moisture.

Are You at Risk? Seven Warning Signs

Consider these warning signs that may indicate your ventilation ducts need cleaning:

- Residing in a building over 10 years old
- Hearing noise from the exhaust fan but sensing no airflow
- Experiencing excessive fan noise during operation
- Noticing high humidity, window condensation, and musty odors
- Frequent occurrences of mold in bathrooms and toilets
- Persistent pet odors
- Difficulty achieving a clean feel even after cleaning the exhaust fan

If you identify with any of these issues, your ventilation duct may be the culprit.

Why Asuka Service Stands Out

Asuka Service specializes in ventilation system maintenance and operates nationwide. With extensive experience garnered from servicing various sectors, including residences, hospitals, and major hotel chains, the company has become a trusted name in the industry.

- Patented Cleaning Techniques (Patent No. 6771221) ensure thorough cleaning of complex duct systems.
- Over 160,000 successful projects, averaging 20,000 projects annually, underpin their credibility.
- Enjoys longstanding partnerships with prominent real estate management companies.
- Offers transparent services with video inspections, allowing customers to see pre- and post-cleaning results.
- Employs thorough protective measures and specialized vehicles for cleaning to safeguard customers’ properties.
- Upholds high service standards through rigorous training and assessments to ensure only skilled personnel carry out the work.

Get in Touch!

For inquiries or consultations, please don’t hesitate to reach out!

- Phone: 0120-49-4957 (Available 9:00 AM to 6:00 PM including holidays)
- Website Form: Contact Us
- LINE Consultation: LINE Chat

About Asuka Service

Founded in 2002, Asuka Service aims for a world free from ventilation issues, offering cleaning services for ventilation ducts, fire dampers, and other maintenance solutions. They manage over 20,000 cleaning jobs yearly and serve a diverse clientele from individual homes to hospitals and lodging facilities.