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Building a Safe Home Starting with Infection Prevention: Virus Control, Air Purification, and Immunity Tips

A guide to creating a healthier home environment with a focus on infection prevention: practical tips on reducing virus exposure, improving indoor air quality, and boosting immunity.

About 1 min read

In the season when infectious diseases, pollen, and allergies are a concern, preventive measures you can take at home are essential. This article focuses on practical tips for keeping viruses and bacteria out of your home, maintaining a clean indoor environment, and adopting habits that boost your immune system.

How to Keep Viruses and Bacteria Out of Your Home

The most effective way to prevent infection is to stop pathogens from entering your home in the first place. Viruses, pollen, and bacteria that attach to clothing and belongings during outings are easily brought inside upon returning home. The following habits can help:

  • Remove your coat at the entryway and change clothes immediately after returning home
  • Designate a fixed spot for your bag (such as the entryway) to keep it out of living areas
  • Wash hands thoroughly for at least 30 seconds after returning home (pay attention to fingertips, nails, between fingers, thumbs, and wrists)
  • Regularly disinfect your smartphone with alcohol
  • During peak seasons, also disinfect frequently touched surfaces such as doorknobs

Designing your home's layout to facilitate these habits — such as placing a coat rack and sink near the entrance — is also an effective infection prevention strategy.

Keep Your Room Clean by Thoroughly Tackling Dust

Dust harbors viruses, bacteria, and mold. Preventing dust buildup is the foundation of indoor hygiene management.

  • Aim for a tidy, uncluttered interior by avoiding excessive items
  • Focus cleaning efforts on areas where dust tends to accumulate (along walls, around furniture, under ventilation fans, under air conditioners, and around TVs)
  • The best times to clean are after waking up or returning home, when there has been less movement in the space

Removing dirt and dust before disinfecting enhances the effectiveness of sanitization.

Why Regular Air Ventilation Matters

There are many sources of indoor air pollution, including mold, bacteria, dust mites, and formaldehyde. Opening two windows on opposite sides of a room simultaneously allows for efficient cross-ventilation.

Using natural materials is also an effective approach.

  • Charcoal: Automatically regulates moisture absorption and release, and adsorbs chemical substances to purify the air
  • Plaster (painted walls): Known as "breathing walls," plaster helps suppress the growth of mold and bacteria

What Lifestyle Habits Help Maintain Strong Immunity?

No matter how well you manage your environment, a weakened immune system increases the risk of infection. Moderate exercise, a balanced diet, adequate sleep, and stress reduction are the fundamentals of maintaining healthy immune function.

To regulate your autonomic nervous system, it is also effective to create time to relax in a dimly lit space with calming scents such as lavender or hinoki cypress.

Frequently Asked Questions (FAQ)

Q. What is the most important thing to do with your clothes after returning home?
A. Remove your coat at the entryway and change into indoor clothing right away. This significantly reduces the amount of viruses and pollen brought inside from outdoors.
Q. What is the best time to clean?
A. The best times are after waking up or after returning home, when there has been little movement in the space. Dust has had time to settle, making it easier to remove efficiently.
Q. How often should you ventilate your home?
A. It is recommended to ventilate for 5 to 10 minutes every 1 to 2 hours. Opening two windows on opposite sides of the room makes this more efficient.
Q. How long does the effect of placing charcoal in a room last?
A. By refreshing the charcoal in direct sunlight, it can be reused repeatedly, maintaining its moisture-regulating and air-purifying effects over the long term.
Daisuke Inazawa, President & CEO of INA&Associates Inc.

Author

President & CEOINA&Associates Inc.

Daisuke Inazawa is the President and CEO of INA&Associates Inc., a Japanese real estate firm headquartered in Osaka with a Tokyo branch. He leads the company's three core businesses — real estate sales brokerage, rental leasing, and property management — across the Greater Tokyo Area and the Kansai region.

His areas of expertise include investment strategy for income-generating real estate, profitability optimisation of rental operations, real estate advisory for ultra-high-net-worth individuals (UHNWIs) and institutional investors, and cross-border real estate investment. He provides data-driven, long-horizon advisory to investors in Japan and overseas.

Under the management philosophy "a company's most important asset is its people," he positions INA&Associates as a "people-investment company" and is committed to sustainable corporate-value creation through talent development. He also writes and speaks publicly on leadership and organisational culture in times of change.

He holds eleven Japanese professional qualifications: Licensed Real Estate Broker (Takken), Certified Real Estate Consulting Master, Licensed Condominium Manager, Licensed Building Management Supervisor, Certified Rental Housing Management Professional, Gyōseishoshi Lawyer (administrative scrivener), Certified Personal Information Protection Officer, Class-A Fire Prevention Manager, Certified Auctioned Real Estate Specialist, Certified Condominium Maintenance Engineer, and Licensed Moneylending Operations Supervisor.

  • Licensed Real Estate Broker (Takken)
  • Certified Real Estate Consulting Master
  • Licensed Condominium Manager
  • Licensed Building Management Supervisor
  • Certified Rental Housing Management Professional
  • Gyōseishoshi Lawyer (Administrative Scrivener)
  • Certified Personal Information Protection Officer
  • Class-A Fire Prevention Manager
  • Certified Auctioned Real Estate Specialist
  • Certified Condominium Maintenance Engineer
  • Licensed Moneylending Operations Supervisor