Key points of the article
Health and hygiene at home	Regular maintenance is not an obsession with cleanliness, but a concrete way to improve air quality and prevent health problems.
Cleaning the fridge	Prevents bacterial growth, including Listeria, and helps preserve food longer.
Recommended maintenance frequency	Clear frequencies are given for each task: sheets, filters, fridge, toothbrush, etc.
Mold and dust mite prevention	Exposure to light, ventilation, regular washing: simple actions limit their development.
Maintenance of accessories and equipment	Brita filter, air conditioning, cutting boards: essential reminders often overlooked.
Lighten up to improve maintenance	Fewer unnecessary items = less dust, less mental load. The circulation of items is encouraged.

We sometimes hear that our homes are "too sterile." Yet, many cleaning habits have very concrete benefits: air quality, mold reduction, allergy prevention, proper food preservation… It has nothing to do with a fear of germs; it's primarily about creating a healthy space that supports our daily lives. Here are some practical, science-based recommendations for taking care of your home without going overboard.

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Clean the refrigerator

Frequency: every 4 to 6 weeks
Spills, packaging, and damp areas encourage the growth of bacteria, even in cold conditions. A clean refrigerator reduces cross-contamination and helps keep food fresh longer. Some bacteria, like Listeria, can thrive at low temperatures, which is why regular cleaning is so important.

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Wash the sheets

Frequency: every 1 to 2 weeks
Bed sheets accumulate sweat, dust, and dead skin cells—perfect breeding grounds for dust mites. Washing bedding reduces irritation and discomfort, especially for those with sensitive skin.

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Let in natural light

Light dries textiles and reduces the activity of dust mites, which prefer dark and humid environments. A simple but effective solution.

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Maintaining the Brita water cooler or filter

Frequency :
– Cooler: every 1 to 3 months
– Brita filter: every 4 to 6 weeks
Mineral deposits and residues create an environment conducive to biofilms. Changing the filter improves water quality… but don't forget the container itself : a Brita pitcher that isn't washed regularly can smell musty.
To do: scrub the pitcher every week to avoid the unpleasant smell typical of stagnant water.

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Have the ducts cleaned

Frequency: every 3 to 5 years (depending on the context)
Dust, pollen, and pet dander can accumulate there. Cleaning is helpful after renovations, if you have long-haired pets, or severe allergies.
Note: In Quebec, some companies try to sell annual cleaning services, which are often unnecessary. If the house is new and well-maintained, it's not always required.

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Maintaining the air conditioning

Frequency :
– Filters: every 1 to 3 months
– outdoor unit: once a year
A clogged filter reduces airflow, increases humidity, and promotes mold growth. Replacing it improves both air quality and system efficiency.

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Clean the bins

Frequency: once a month
Organic residue ferments and generates odors. A quick rinse prevents buildup and keeps the space clean.

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Replace the toothbrush

Frequency: every 3 months
Worn bristles are less effective and retain more moisture.
Exception: after the flu, tonsillitis or other infection, it should be changed immediately to avoid re-exposure to germs.

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Cutting boards: a hot topic in the kitchen

The boards — especially plastic ones — quickly develop scratches. These micro-cracks trap oils, food residue, and microbes, which explains the persistent smells of old onion or garlic.

How to care for them

Plastic:
• hot water + soap
• dishwasher
• Baking soda for odors
• diluted bleach occasionally

Drink :
• warm water + mild soap
• vinegar or lemon + salt
• vertical drying
• monthly mineral oil

When to replace

• deep striations
• persistent odor despite cleaning
• cracks (wood)
• rough surface (plastic)

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Clean behind the refrigerator, stove, and baseboard heaters

These areas accumulate dust and pet hair. The dust acts as thermal insulation: appliances work harder and consume more energy.

Why this is important

• Fridge and stove: dust on the coils = less efficiency + risk of odor + attraction to insects.
• Baseboards: Dust burns slightly when heated and releases fine particles. Cleaning them prevents the typical smell of the first autumn heating.

Frequency: 1 to 2 times per year (more often if animals).

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Limit the accumulation: lighten the space and the head

We often keep things "just in case," but they take up unnecessary space. A cluttered environment retains more dust, makes cleaning more difficult, and increases mental strain.

A simple rule

If an item has not been used for a year and has no sentimental value, it can be circulated.

Donate, sell or recycle

Circulating what you no longer use frees up space and makes rooms easier to maintain — without aiming for extreme minimalism.

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Wash winter accessories (neck warmers, scarves, mittens)

Winter accessories come into direct contact with the skin, mouth, and hands. They trap moisture, perspiration, and external particles.

Why this is important

• Neck warmers/scarves: moisture from breathing = odors + germs
• Mittens/gloves: sweat + surface dirt
• Toques: natural oils + outdoor dust

Frequency

• Neck warmer/scarf: every week
• Mittens/gloves: 1 to 2 weeks
• toques: 2 to 3 weeks

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In summary

Keeping your home clean isn't about being overly sanitized. It's simply about adopting a few logical and regular habits that improve air quality, kitchen hygiene, and everyday comfort. There's no need to overdo it: a few well-aligned good habits truly make a difference.