Why you should be aware of VOCs in carpet and how to deal with them.
If you’ve ever unrolled a brand-new carpet in your home, you’ll know the smell I’m talking about. That distinct “new carpet smell” can be strangely satisfying at first—like the smell of a new car—but pretty soon you start wondering, what exactly am I breathing in?
That smell comes from something called VOCs—Volatile Organic Compounds. They’re tiny airborne chemicals that evaporate (or “off-gas”) into your living space. And while some people hardly notice, others might feel their eyes sting, get a headache, or find their allergies flaring up.
So what are VOCs in carpet, are they really dangerous, and what can you do about them? Let’s unpack this, step by step.
What Exactly Are VOCs?
VOCs (Volatile Organic Compounds) are gases released from certain solid or liquid materials. You’ll find them in all sorts of everyday things: paint, cleaning products, new furniture, and yes—carpet.
When a carpet is manufactured, several things can contribute to VOC emissions:
- The fibres themselves: Most modern carpets are synthetic (like nylon or polyester).
- The backing: Often made with latex or other glues.
- The underlay: That cushy padding can also contain adhesives and foams.
- The dyes and treatments: Stain-resistant finishes and flame retardants sometimes release VOCs.
One of the main culprits behind that familiar “new carpet smell” is a compound called 4-phenylcyclohexene, or 4-PCH for short. It’s a by-product that forms during the production of synthetic latex, which most modern carpets use in their backing. Because 4-PCH has a very low odour threshold—around 0.5 parts per billion—even the tiniest amount can be detected as soon as your new carpet is laid.
Years ago, carpet manufacturers used natural latex for backing, but it caused allergic reactions in some people. To fix that, they switched to synthetic latex, which turned out to be safer in that regard but introduced 4-PCH into the mix. The good news is that while low levels of 4-PCH (combined with other carpet emissions) can cause mild symptoms like headaches, watery eyes, or nausea, studies have found no evidence of any long-term health risks from normal household exposure.
It’s not about demonising carpet—it’s about knowing what you’re bringing into your home and how to manage it. In the case of synthetic carpets, most, but not all of these VOCs are destroyed in the manufacturing process. The carpet is “baked” at 150-170c in a finishing oven which eliminates many of the chemicals. Some would argue that of most common flooring options, carpet is the lowest emitter of VOCs,
Are VOCs In Carpet Something to Worry About?
Here’s the honest truth: most VOCs in carpet are present in very small amounts, and they usually dissipate within days or weeks. But that doesn’t mean everyone feels fine around them.
Short-term effects some people notice:
- Headaches
- Dizziness or nausea
- Itchy eyes or throat
- Worsened asthma or allergies
Long-term risks?
The research is still ongoing. At this stage, there isn’t strong evidence that household carpets alone cause long-term illness. But scientists do know that indoor air quality matters, especially for children, elderly people, and those with sensitive lungs.
People who experience asthma or other respiratory conditions or are particular sensitive to chemicals, should try to avoid exposure to VOCs. My advice? Take VOCs seriously, but don’t panic. With the right approach, you can keep your home safe and comfortable.
Why Does the Smell Linger?
That “new carpet smell” you notice is just VOCs off-gassing (at room temperature, the VOCs are released into the environment in the form of gas which evaporates into the air). The strongest period of off-gassing is the first 48-72 hours after installation, but depending on ventilation, humidity, and the type of carpet, low levels can stick around for weeks.
Think of it like leaving onions in your fridge—the smell hangs around far longer than you’d expect, even when the onions are gone! VOCs behave the same way, slowly releasing until the carpet has “settled in.”
Do Australian Carpets Have VOC Standards?
Yes—and no.
Here in Australia, there aren’t strict government laws that ban VOCs in carpet. But the Australian Carpet Institute does set guidelines and labels products that meet low-VOC standards. Plus, the Green Building Council of Australia recognises VOC emissions when rating eco-friendly buildings.
The Australian Carpet Institute has created the Australian Carpet Certification Scheme (ACCS) to help consumers identify carpets with better environmental performance. To earn a “green” certification label, manufacturers must meet strict standards covering everything from the raw materials and manufacturing process to how the carpet performs in your home and how it’s disposed of at the end of its life.
These eco-certified carpets generally have much lower VOC emissions than standard synthetic options, so they’re definitely worth considering if indoor air quality is important to you.
There are no specific regulations set for VOCs in carpets or even general indoor air quality by the Australian Government, except for regulations on some specific substances in the workplace. It is difficult to regulate and enforce set standards in private homes, however, individual state authorities and organisations are able to offer recommendations and guidelines.
If you’re shopping for new flooring, look for carpets with certifications like:
- Low VOC or “green” labels
- Natural fibre options (wool, jute, sisal)
- Green Star or other sustainability ratings
How to Minimise VOCs After New Carpet Installation
Okay, so you’ve chosen a carpet you love, and now it’s rolled out in your lounge. What can you do to reduce that new carpet smell and protect your indoor air quality?
1. Air it out before installation
If possible, ask your supplier to unroll the carpet in a warehouse for a few days before delivery. This gives some of the gases a chance to escape before the carpet even reaches your home. Also, ensure your carpet installer uses underlay and adhesives that only emit low levels of VOCs, as often these are the culprits for high VOC levels, rather than the carpet.
2. Ventilate like crazy
Once the carpet is down, open all the windows and doors. Use fans to move the air around. Melbourne homes can get stuffy in winter, but even cracking a few windows will help. To stop the VOCs spreading to other areas of the house. once you open up the windows, close the doors to the areas with new carpet and try to stay out of those rooms for a few days.
3. Control heat and humidity
Warmth and moisture speed up off-gassing. A comfortable, dry indoor climate helps VOCs disperse faster without building up in the air.
4. Clean smart
Vacuum regularly with a HEPA filter vacuum to capture fine dust and particles. A professional steam clean a few weeks after installation can also help wash away residues.
5. Consider air purifiers
An air purifier with activated carbon filters can help trap VOCs and reduce odours, especially in bedrooms or living spaces. Indoor plants can also help remove VOCs from the air.
6. Take a holiday!
Worst case scenario, if those pesky VOCs are giving you a head ache – it could even be a good time to take a short holiday and give those VOCs time to vacate!
Long-Term Carpet Health
Once your carpet has settled, VOCs become much less of an issue. The bigger challenge is keeping your carpet fresh, clean, and allergen-free.
That’s where regular professional cleaning makes a difference. At Black Gold Carpet Cleaning Melbourne, we use non-toxic, eco-friendly solutions—so you’re not trading VOCs from your carpet for VOCs from harsh cleaning chemicals.
Our hot water extraction method (steam cleaning) doesn’t just lift dirt, it helps flush out residues that might otherwise hang around in the fibres and backing.
As well as steam cleaning, regular dry vacuuming is very important. Carpet is a great air filter, as it traps VOCs, from other sources, as well as dirt and dust. However factors like, poorly filtered vacuum cleaners or the kids playing on the carpet, cause agitation. This is when the VOCs and dust can become air born again. It is important, therefore, to remove them with regular, well filtered, vacuum cleaning.
Should You Avoid Carpet Altogether?
Not at all. Carpets bring warmth, comfort, and style to a home that hard floors just can’t match. The key is making informed choices:
- Pick low-VOC or natural fibre carpets when possible.
- Ventilate properly after installation.
- Stick to gentle, eco-friendly cleaning products.
Carpet is not the enemy—ignorance is.
Final Thoughts
VOCs in carpet might sound scary, but with the right knowledge, they’re easy to manage. That “new carpet smell” will fade, especially if you air out the space and clean wisely.
So next time you’re shopping for carpet in Melbourne, remember:
- Ask about low-VOC options.
- Ventilate well during and after installation.
- Keep up with eco-friendly cleaning.
At the end of the day, you don’t need to give up carpet—you just need to treat it right.
