Air Fresheners, Candles & VOCs: What to Use Instead

If your house smells like a candle store, your indoor air may be working against you. Most air fresheners, plug-ins, aerosol sprays, and synthetic candles release volatile organic compounds (VOCs) — and many also use fragrance bases that historically contained phthalates and other compounds you might prefer to skip.

Good news: a fresh-smelling home does not require any of them.

What is actually being added to your air

VOCs

Volatile organic compounds are chemicals that evaporate at room temperature. Some are harmless. Others can irritate airways, contribute to indoor air quality issues, and react with ozone to form additional irritants.

Common indoor VOC sources:

• Aerosol air fresheners
• Plug-in air fresheners
• Many scented candles (especially paraffin)
• Reed diffusers with strong synthetic fragrance
• Cleaning products with heavy fragrance
• Personal care products applied indoors
• New furniture and paint (for weeks to months)
• Some wood-burning and stoves

Phthalates (in fragrance carriers)

Historically used in fragrance bases. EU has restricted the most-concerning phthalates in cosmetics, but air fresheners and cleaning products are a different category. "Fragrance" on a label remains a black box.

Particulate matter from candles

Burning produces fine particles. Quality matters — paraffin candles with synthetic fragrance produce more concerning particulates than beeswax or quality soy.

Combustion byproducts from gas stoves

Cooking with gas releases nitrogen dioxide and other byproducts. Worth ventilating during and after.

Why this matters

Indoor air is often more polluted than outdoor air — sometimes 2–5x more. Poor indoor air has been associated with:

• Headaches
• Respiratory irritation
• Worse asthma and allergy symptoms
• Sleep disruption
• Children's respiratory health concerns
• Long-term cardiovascular and respiratory effects

The combination of sealed homes, synthetic fragrance, and limited ventilation can create a meaningfully suboptimal indoor environment.

“Volatile organic compounds are chemicals that evaporate at room temperature.”

— Feel AWSM Editorial

The number-one fix: ventilation

Before any product swap, this:

• Open windows daily — 15–30 minutes minimum, ideally morning and evening
• Open windows during and after cleaning
• Open windows after cooking (especially with gas stoves)
• Cross-ventilate — open windows on opposite sides of the home for airflow
• Use kitchen extractor fans
• Run bathroom fans during and after showers

This single habit does more for indoor air than any product purchase.

What to skip

Plug-in air fresheners

Continuous fragrance release. Skip them. The "fresh" feeling masks the underlying air, doesn't improve it.

Aerosol "freshening" sprays

Concentrated fragrance plus propellants. Skip them.

Strong synthetic candles

Paraffin candles with heavy fragrance contribute to indoor particulate and VOCs. Skip them as daily ambience.

"Long-lasting" reed diffusers with strong fragrance

Continuous evaporation of fragrance compounds. Use sparingly if at all.

What to use instead (gentler options)

Quality beeswax or soy candles

For ambience:

• Beeswax burns cleanly with minimal soot
• Soy is generally cleaner-burning than paraffin
• Choose unscented or lightly fragranced with essential oils (use sparingly — see below)
• Use sparingly — even quality candles produce particulates

Essential oils (with caution)

Diffusers can be a gentler alternative — but essential oils are concentrated and not automatically benign.

Practical guidance:

• Use sparingly — short sessions, not continuous
• Open a window
• Don't overdo it for sensitive people, children, pregnancy
• Avoid in homes with pets (especially cats and birds — many essential oils are toxic to them)
• Skip cinnamon, eucalyptus, peppermint, tea tree near babies and pregnant women without medical input
• Quality matters — choose pure essential oils from reputable sources

Simmering pots

Old-school and underrated:

• A small pot of water on the stove with citrus peels, cinnamon stick, or fresh herbs
• Simmers gently, releases natural scent
• Skip strong commercial "simmering" mixes with synthetic fragrance

Plants

• Some plants modestly support indoor air (research is mixed and effects often overstated)
• A home full of plants is a healthier home for many reasons (humidity, mood, possible modest VOC reduction)
• Don't expect plants alone to solve poor indoor air

Quality air purification

For sensitive people or known concerns:

• HEPA air purifiers filter particulate effectively
• Carbon-based purifiers can address some VOCs
• Look for credible certifications (CADR ratings, EU energy efficiency)

Open the windows. Again.

The most underrated practice in modern home health.

What to be careful with

• "Natural" or "essential oil" branded plug-ins — still releasing concentrated compounds continuously
• Very strong essential oil use without ventilation
• Essential oils around pets, infants, or pregnancy without checking
• Burning candles in closed rooms for hours
• Replacing one fragrance product with another fragrance product

What to look for vs what to be careful with

When to talk to a healthcare professional

Speak with a doctor about persistent respiratory symptoms, headaches that may relate to indoor air, asthma, allergies, or specific concerns related to pregnancy, infants, or pets.

The final takeaway

A clean-smelling home is not always a clean-air home. Skip plug-in air fresheners, aerosol sprays, and heavy synthetic candles. Open windows daily. Use beeswax or soy candles sparingly with low fragrance. Simmer citrus and cinnamon for natural scent. Use essential oils thoughtfully with ventilation. The goal is fresh real air, not masked synthetic fragrance.

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