When we think about “clean,” we usually think about what we can see: shiny counters, fresh laundry, no sticky fingerprints on the fridge. Indoor air quality is the invisible part of the story—and it matters most when the windows stay shut.
In colder months, we seal up our homes to stay warm. That also means whatever we spray, burn, or plug in tends to hang around. This is where VOCs come in.
This isn’t about panic. It’s about understanding what’s in your air, what actually matters, and a few realistic changes that make sense for everyday life.
In This Article:
The Problem: VOCs (gases from chemicals such as cleaners and plastics) get trapped when windows are shut.
The Priority: Swap the things you touch daily—like glass and surface sprays.
The Fix: Choose safe products, avoid synthetic fragrance, and ventilate when you can.
What Indoor Air Quality Actually Means
“Indoor air quality” is a simple phrase for a mix of things:
- Gases released from products and materials (including volatile organic compounds, or VOCs)
- Particles from cooking, dust, and outdoor pollution that drift inside
- Moisture, mold, and pet dander
You can’t control everything. But you can control a lot of what you bring into your home in the form of furniture, cleaners, fragrances, paints, and fabrics.
Good indoor air quality doesn’t mean a sterile house. It means fewer unnecessary irritants and fewer “mystery” ingredients floating around.
What Are VOCs?
VOCs (volatile organic compounds) are chemicals that easily become gases at room temperature. You’ll find them in:
- Most conventional cleaning products
- Air fresheners and scented candles
- Paints, varnishes, and some adhesives
- Certain types of flooring and furniture
- Gas stoves and some cooking processes
Some VOCs are relatively harmless at low levels. Others can cause headaches, eye and throat irritation, or make asthma and allergies worse. A few are linked to more serious health effects with repeated exposure.
The key point: in a closed-up home, VOCs don’t have many places to go. So small daily exposures can add up.
Why Kids, Pets, and Sensitive People Feel It First
Closer to the Floor
Children and pets spend more time close to the floor, where dust and heavier particles settle. Kids also touch more surfaces and put their hands and toys in their mouths.
Developing Bodies and Constant Exposure
Children’s lungs and immune systems are still developing. Pets spend most of their lives indoors. That means whatever is on your floors and surfaces is what they live with, day in and day out.
This isn’t a reason to panic. It’s a good reason to be intentional about the products that live on those surfaces and in that air.
Safe Chemistry, Not “Chemical-Free”
You’ll never hear us say “chemical-free.” Water is a chemical. So is salt. So are the surfactants that lift grease and food off your dishes.
The goal isn’t to remove chemistry from your home. The goal is to choose safe chemistry. When you’re reading a label to protect your indoor air, these are the specific VOC-heavy ingredients to look out for:
- "Fragrance" or "Parfum": These are umbrella terms that can hide hundreds of phthalates and synthetic musks that off-gas into your air. Look for "Essential Oils" instead.
- Formaldehyde-releasers: Often used as preservatives (look for DMDM hydantoin or Quaternium-15), these are known respiratory irritants and significant VOCs.
- Ethanolamines (MEA, DEA, TEA): Frequently used as surfactants or pH adjusters, these can react with other ingredients to release VOCs and are known to trigger asthma.
- Glycol Ethers: Common in glass and surface cleaners (look for 2-butoxyethanol). They are highly effective solvents but are also potent VOCs that can linger in the air long after you've finished cleaning.
When you can see every ingredient listed clearly and know which ones to avoid, you can decide for yourself what you’re comfortable bringing into your home. That’s how it should be.
Where VOCs Commonly Come From at Home
1. Cleaning Products
Many conventional cleaners use:
- Solvents (to dissolve grease and grime), and
- Synthetic fragrance blends (to give that “just cleaned” smell).
Both can contribute VOCs to your indoor air, especially in small or poorly ventilated spaces.
On the label, pay attention to:
- “Fragrance” or “Parfum” as a catch‑all term. This usually means a proprietary blend rather than a simple essential oil.
- Strong solvent language like “use in a well‑ventilated area” or warnings about eye and respiratory irritation. That’s your cue that the product is designed to off‑gas.
Practical steps:
- If a product’s scent fills the whole room and lingers for hours, that’s a sign to use less of it or switch.
- Choose cleaners that either:
- are clearly labeled as low‑odor / low‑VOC, or
- rely on simpler ingredient lists you can read and understand.
- When you do use stronger products (for example, for a one‑time deep clean), open a window or turn on a fan while you’re using them and for a bit afterwards.
You don’t need a lab to evaluate every ingredient. Start with how it smells, how strongly it’s labeled, and how often you’re using it.
2. Fragrances and Air Fresheners
Sprays, plug‑ins, reed diffusers, and heavily perfumed candles all add VOCs to indoor air. For some people, that’s an instant headache; for others, it’s just a constant low‑level background they never quite notice.
Signs it’s too much:
- The smell hits you the second you walk into a room.
- You still smell it after you’ve been away from home for a few hours.
- Someone in your household regularly gets headaches or feels “stuffy” in scented rooms.
Practical steps:
- If you like scent, use it deliberately, not constantly:
- Prefer products that clearly name their scent sources (e.g., “lavender essential oil”) over vague “fresh linen” type descriptions.
- Avoid plug‑ins 24/7.
- In bedrooms, nurseries, and home offices, consider going fragrance‑free in anything that lives there all day (cleaners, air “fresheners,” dryer products).
The goal isn’t a scent‑free house. It’s avoiding a constant cloud of unknown fragrance chemicals.
3. Paints, Varnishes, and Finishes
Fresh paint, wood finishes, and some adhesives release VOCs as they cure. This is most noticeable in the first days or weeks, especially in closed rooms.
On the label:
- Look for “low‑VOC” or “zero‑VOC” claims for interior paints and primers. These categories exist for a reason and are widely available now.
- For varnishes and finishes, you may not always find “low‑VOC,” but you should at least see clear ventilation instructions.
Practical steps:
- When painting or refinishing indoors:
- Open windows and use fans to move air out, not just around.
- Sleep in a different room for a few nights if the smell is strong.
- If you’re able to plan ahead, choose low‑/zero‑VOC paints for bedrooms and kids’ rooms as default.
You don’t have to repaint your house to improve indoor air quality. Just make a better choice the next time you’re already doing a project.
About Houseplants and “Magic Fixes”
You’ve probably seen claims that a few houseplants can “purify” your air. Early lab studies suggested that plants can remove some compounds, but those setups don’t match real homes.
In real life, you’d need an indoor jungle to make a noticeable impact. Plants are great for how a space feels and for your mood. We like them too. They’re just not a reliable way to “clean” indoor air on their own.
Our stance: enjoy the plants. Don’t rely on them to cancel out strong cleaners or heavy fragrance.
7 Practical Ways to Improve Indoor Air Quality
These are realistic changes you can make over time to reduce VOCs and other pollutants in your indoor air—no extreme rules, no all‑or‑nothing thinking.
1. Ventilate When You Can
Open windows when the weather and outdoor air quality allow—especially during and after cleaning, painting, or cooking. Even a short window of fresh air helps dilute VOCs and cooking fumes that build up when everything is closed.
2. Rethink Everyday Cleaners
Products you use often (surface sprays, bathroom cleaners, glass cleaners) can release VOCs into the air when you spray or wipe them.
When you’re already buying or replacing a cleaner, look for:
- Low‑odor or low‑VOC language on the label.
- Simpler formulas without strong solvent warnings.
- Less aggressive, shorter‑lasting scent (a room shouldn’t smell like cleaner for hours).
If you do need a very strong product for a specific job, use extra ventilation while you’re using it.
3. Be Picky About Fragrance
Fragrances are a common source of VOCs in the home.
Practical ways to cut back:
- Avoid products that heavily scent the whole room for hours (sprays, plug‑ins, some candles).
- Use lighter, clearly described scents where you actually want them, instead of constant background fragrance everywhere.
- If a product regularly gives someone a headache or feels “thick” in the air, that’s a good sign to use less or swap it.
4. Choose Lower‑VOC Paints and Finishes When You’re Ready
Fresh paint, primers, and some finishes release VOCs while they cure.
When you’re already planning a project:
- Choose low‑ or zero‑VOC interior paints and primers where you can.
- Keep windows open and use fans to move air out of the room while and after you paint.
You don’t need to repaint anything just for this—just make a better choice next time you’re already doing it.
5. Let New Big Items Air Out
New mattresses, sofas, and large rugs can release VOCs from foams, adhesives, and some treatments, especially in the first days or weeks.
Simple steps:
- Unwrap them in a room where you can open windows.
- If the smell is strong, give them extra time to air out before using them in a small, closed bedroom.
6. Cook With Better Airflow
Cooking—especially on gas and at high heat—adds gases and particles to indoor air.
Whenever you cook:
- Use your range hood if it vents outside.
- Open a window during heavier cooking (frying, searing, long oven use) if that’s possible in your space.
Where Common Good Fits In
We started Common Good because we didn’t like the choice between products that worked and products that felt “safer” but didn’t really clean.
For indoor air, our approach is simple:
Safe chemistry. Plant-based surfactants, straightforward preservatives, and scents from essential oils—not heavy synthetic fragrance or harsh solvents that hang in the air.
Transparent labels. Every ingredient listed in plain language so you can see exactly what’s in the bottle and decide if it belongs in your home.
Less in the air. Our goal is to clean what you touch every day—sinks, counters, dishes, laundry—without leaving a strong chemical cloud behind.
You Don’t Have to Fix Everything at Once
Improving indoor air quality isn’t about chasing a perfect number on a monitor. It’s about making a few clear choices where they matter most:
- Swap your everyday cleaners for products built on safe chemistry.
- Be honest about which fragrances feel good and which don’t.
- Use ventilation whenever you can.
That’s it. No cleanse, no challenge, no extremes. Just a home that feels cleaner, smells calmer, and gives you fewer reasons to worry about the air you’re breathing.
