We're here to help. Find the information you need amongst the frequently asked questions or feel free to reach out to us.

Can I stop taking my prescribed medication?

If you’ve been diagnosed with a condition and prescribed medication, always consult your doctor before changing or reducing your medication. Clinical evidence have focused on Air4 in combination of regular pharmaceutical treatments. This means you should use your Air4 every night in combination with prescribed medication. At any uncertainty, contact your doctor.

Is Air4 safe during pregnancy, breast-feeding and for small children?

Air4 does not supply any substances that can affect the pregnancy, breast-feeding or small children. The clinical evidence using Air4 were not focused on women who were pregnant, breast-feeding or small children.

How do I use Air4

Do I need to turn it on before I go to bed?

We recommend that you use the timer function (see Instructions For Use) to set your Air4 to start in time before you normally go to bed. If you prefer to not use the timer function, you will need to turn on / switch off on your Air4 every evening / morning.

Do I need to sleep in the same position all night or does the device work even if I move during sleep?

Air4 creates a distinct clean zone that covers the breathing zone in terms of width and volume. The clean zone does cover sideways movements therefore you do not need to sleep in the exact same position.

How Air4 functions

Is the Air4 noisy? Will it interrupt my sleep?

Air4 has a very low sound level of ≤ 38 dB(A) which is the sound level of most computers.

Does the Air4 purify the air in the entire room as well?

Air4 focus is on purifying the air in the breathing zone. The purifying effect in the entire room will be similar to a standard room air purifier with equivalent airflow rate and filter quality. However, the purifying effect will be approximately a 100 fold better within the breathing zone compared to the entire room.

How long does it take Air4 to work after it is turned on?

Air4 will have full effect within 5 minutes after it is turned on.

How much power does an Air4 consume?

The average energy consumption is equivalent to a 60 W bulb.

I want to sleep with the window open / use a mechanical fan in the summer because my room gets very warm.

The Instructions For Use will guide you how to avoid air movements in the room that may interfere with the function of Airsonett.

Do you feel a draft from the cold air flowing over your head?

Almost no users experience a draft from Air4. However, if you get a chilly or draft feeling, you can decrease the cooling (see Instructions For Use for details).

Can I move the Air4 when I clean my room?

Air4 is a stationary device. If it needs to be moved, take care to replace it so it is positioned over the pillow. Positioning is described in Instructions For Use.


How long will it take before I feel better?

If the treatment is effective for you, the improvements comes gradually. In clinical evidence, the majority have experienced significant improvements within 3 months. However, the effect is individual and may come earlier for some persons and later for others.

I want to go on holiday for a week or two (without Air4). Will my asthma be back?

Always consult your doctor when you feel uncertain in this regard. Increase in symptoms may be very individual and also depend on length of holiday and type of environment you will go to.

My child has frequent sleepovers at friends’ houses. Will this have an effect on his/her Air4 treatment?

Always consult your doctor when you feel uncertain in this regard. Increase in symptoms may be very individual and also depend on type of environment your child will visit.


How often does the filter need to be changed? Is it difficult to change it?

Every six months the filter needs changing. If the filter is not changed Air4 will stop working after 7 months. The procedure to change filters is simple and only takes a few minutes (see Instructions For Use).

Air4 does not start / has a strange noise / warning light goes on / etc

Troubleshooting is described in the Instructions For Use.

How do I clean my Air4?

The cleaning instructions are described in the Instructions For Use.