The 20-second answer
Want the edge taken off, but still hear people?
Filtered earplugs
Loud or sudden noise?
Ear defenders
Steady hum on the move?
Noise-cancelling headphones
In short: filtered earplugs lower sound evenly so you can still follow a conversation, ear defenders give the strongest quiet for loud or sudden noise, and noise-cancelling headphones work best on steady hum like trains, planes and air conditioning.
Which is which
What’s the difference between earplugs, ear defenders and noise-cancelling headphones?
Earplugs
Soft plugs that sit in your ear. Filtered ones take the edge off and let voices through.
- Still hear voices (filtered types)
- Hard to spot
- No charging
- Can feel odd inside the ear
Good for: Office, school, busy shops, sleep
Ear defenders
Padded cups over the ears. The strongest simple quiet, with nothing inside the ear.
- No charging
- Nothing inside the ear
- Voices muffled
- Easy to spot
Good for: Loud or sudden noise: events, hand dryers, fireworks
Noise-cancelling headphones
Headphones that cancel steady hum electronically. You can play calm sounds too.
- Hear voices with transparency mode
- Look like normal headphones
- Need charging
- Less good on sudden bangs
Good for: Trains, planes, open-plan offices
Read more: how each one works
Earplugs and ear defenders block sound physically, so they work on any noise, including sudden bangs. The seal matters most: a plug that sits loosely or a cup that doesn’t cover the whole ear lets sound leak in.
Filtered earplugs have a small channel or filter that lowers every sound by a similar amount. Voices stay clear, just quieter, which is why many people find them less isolating than foam plugs.
Noise-cancelling headphones use microphones to hear the sound around you and play the opposite sound wave. This works very well on steady, low sounds like engines and fans, and less well on sudden or high sounds like a baby crying or cutlery clattering. Most have a transparency mode that lets voices through when you need them.
How loud is loud
How loud are everyday sounds?
Numbers are rough guides. How loud something feels matters more than the number.
Where many of us start to feel overloaded From about 85 dB, long exposure can damage hearing
Text version of this chart
| Sound | About |
|---|---|
| Quiet bedroom | 30 dB |
| Chatting | 60 dB |
| Busy classroom | 70 dB |
| Hand dryer | 85 dB |
| Tube train | 95 dB |
| Concert | 105 dB |
Many people start to feel overloaded somewhere between 50 and 85 dB. From about 85 dB, long exposure can damage hearing.
Read more: what decibels and SNR mean
Decibels (dB) measure how loud a sound is. They go up in steps that sound bigger than they look: every extra 10 dB sounds roughly twice as loud, so a hand dryer at 85 dB sounds about twice as loud as a noisy classroom at 75 dB.
Hearing protection is labelled with an SNR number (Single Number Rating). It is roughly how many decibels it takes off. A filtered earplug might be SNR 17 to 25, children’s ear defenders are often around 25, and foam earplugs can be over 30.
UK workplace rules ask employers to offer hearing protection from 80 dB and make sure it is worn from 85 dB, averaged over a working day. For sensory comfort, how a sound feels matters more than the number.
Which to try
Which one should I try first?
Follow the arrows. Many people end up with two: one for everyday and one for loud days.
1. Do you need to hear people talking?
YesGo to question 2
NoGo to question 3
2. Should it be hard to spot?
YesTry filtered earplugs
NoTry noise-cancelling headphones with transparency mode
3. Is the noise loud and sudden?
YesTry ear defenders
NoTry noise-cancelling headphones
Text version of this chart
- Do you need to hear people talking? If yes, go to question 2. If you want as much quiet as possible, go to question 3.
- Should it be hard to spot? If yes, try filtered earplugs. If you don’t mind, try noise-cancelling headphones with transparency mode.
- Is the noise loud and sudden, like hand dryers or fireworks? If yes, try ear defenders. If it is a steady hum, like a train or plane, try noise-cancelling headphones.
Where you’ll use it
What works best at school, work, on the move and in bed?
School and college
Filtered earplugs, or light ear defenders for assemblies and lunch halls.
Work
Filtered earplugs for meetings; noise-cancelling headphones for focus time.
Commuting
Noise-cancelling headphones take the rumble out of trains and buses.
Concerts and events
Ear defenders, or high-fidelity earplugs that keep music clear.
Sleep
Soft foam or silicone earplugs. Try a few shapes to find one you forget is there.
What to look for
What should I look for when buying?
The SNR number
Higher means quieter. Around 20 takes the edge off; 30 or more is strong.
Comfort
Soft cushions, a light headband, and sizes for smaller ears.
How visible
Earplugs and plain headphones blend in. Bright ear defenders stand out.
Charging
Noise-cancelling needs charging. Check the hours between charges.
Easy to clean
Wipeable cushions and washable tips last longer.
Take breaks
Some audiologists say wearing protection all day in quiet places can make everyday sounds feel louder over time. Use it where it helps most.
Practise at home
Try new ear defenders for a few minutes at a time before a big day out, especially with children.
If sound hurts
If everyday sounds cause pain, talk to your GP. They can refer you to an audiologist.
Questions
Common questions
Can ear defenders make noise sensitivity worse?
Some audiologists think that wearing protection all the time, even in quiet places, can make everyday sounds feel louder over time. Many suggest using it for loud or overwhelming places and taking it off in calm ones. If you are worried, ask your GP about seeing an audiologist.
Are noise-cancelling headphones safe for children?
Yes, if any sound played through them is kept at a low volume. Look for children’s headphones with a volume limit, usually 85 dB. The noise cancelling itself does not add sound.
What SNR rating do I need?
Around 20 takes the edge off everyday noise, 25 to 30 suits busy places, and over 30 is for very loud events. More is not always better: very strong protection can feel isolating and make it hard to hear people.
Can I sleep in earplugs?
Many people do. Soft foam, silicone or wax earplugs sit flatter, so they are more comfortable on a pillow. Keep them clean, replace foam ones often, and speak to a pharmacist or GP if you get ear pain.
Will people notice I am wearing earplugs?
Small filtered earplugs are hard to spot, especially in clear or skin-tone colours. Noise-cancelling headphones look like ordinary headphones, so they rarely draw attention.