Air Purifier Buying Guide

Air Purifier Buying Guide

Air purifiers improve the quality of the air that we breathe, by reducing harmful airborne particles and allergens. There is a wide variety to choose from but which is the best air purifier for you and your home?

Air purifiers work to keep the air inside your home clean by removing particles such as dust, pollen and mould spores. Dehumidifiers and humidifiers control the moisture in your home helping to stall the growth of mould. Air purifiers sometimes referred to as air cleaners, also work to keep your home’s climate healthy by removing polluting particles like dust and pollen. Often packaged as portable units and fans, here’s how these cleaning machines help you breathe easier.

What does an air purifier do?

Air purifiers remove pollutants from the air such as;

Particulate pollutants e.g.)

  • Mould spores
  • Dust mites
  • Bacteria
  • Animal dander
  • Viruses

Gaseous pollutants e.g.)

  • Paint
  • Varnishes
  • Adhesives
  • Pesticides

Air purifiers filter these contaminants out of the air playing a helpful role to anyone sensitive to allergies or with asthma2.

How do air purifiers work?

There are four different types of air purifiers, and they all have the same purpose – to improve that standard of air that we breathe.

Air Ioniser

Air ionisers produce steam, consisting of negatively charged ions, which will cling to the positively charged ions in the air (airborne allergen particles and dust).  When these particles join, they become heavy and sink to the floor.

HEPA Air Filter

HEPA is an acronym of High Efficient Particulate Air. To qualify as true HEPA, an air filter must remove 99.97% of all particles greater than 0.3 micrometres from the air that passes through. (Particles smaller than 0.3 microns are still trapped by HEPA filters but effectiveness is reduced to less than 99.97%.)

Most purifiers contain a HEPA filter (Highly Efficient Particular Air).  These filters remove 99.97% of pollutants in the air. These filters are extremely useful for removing dirt, allergens, dust and mould particles, but do very little for removing bad odours or smoke.

Air sterilisation

Air sterilisation purifiers use technology to silently and effectively pull contaminated air in, by air convection. Contaminated air, such as pollen, pet allergens, viruses, fungi, mould, dust mites, odours and bacteria are all pulled in.

Once inside, air flow carries micro-organisms into the exclusive TSS sterilising chambers. Inside these chambers, temperatures reach 400°F, incinerating all micro-organisms. Sterilised air is then cooled and returned to the room.

Which model should I choose?

This depends on:

  • The size of the room
  • The level of air purification and cleanliness you want
  • Your budget
  • How much space you have? – Some models can sit on a shelf.
  • How much the unit weighs? – Important if moving it from room to room.
  • Is it the correct size for the room – different size models clean different volumes of air?
  • The number of times an hour the air is cleaned.
  • Other features you need such as remote control and speed settings.

Some air purifiers make a low whirring noise, which you might want to take into account if you’re a light sleeper. Air purifiers featuring HEPA filters are more expensive but are more effective than other filters at removing harmful bacteria and pollen that can affect allergy and asthma sufferer.

Where is the best place to put my air purifier?

It is best to keep an air purifier in the centre of a room. When this isn’t suitable you can also place it in an area which is the source of the irritant, e.g. where your pet might settle, or where someone smokes.

It is best to not place the purifier against a wall, as it may hinder its ability to intake air efficiently.

What Benefits will I get from having an air purifier?

Air purifiers create a cleaner environment in your home for you and your family. They remove smoke, dust particles and pollen from your home. Mould spores, pet dander and dust mite droppings are captured and pulled away from the clean air. As a result, air quality in the home will be greatly improved.

Should the purifier be switched on continuously?

To be as effective as possible, all air purifiers should be switched on all the time, as air pollution will return when it is switched off.

Check out the range of Air Purifiers we have at Slumber Slumber here.

Travelling with Allergies

Travelling with Allergies

When someone at home has an allergy we do everything we can to make life as easy as possible. But what about when we are travelling with allergies?

Be it a work trip, weekend getaway with friends, a family holiday, our allergies can join us for the ride. The frustration of new bedding, running out of medication and unknown surroundings can cause flare ups, but this can be avoided!

Handy precautions can help ease these symptoms so with a few moments’ preparation you can save yourself from a trip of misery.

Medications for travelling with allergies

Make sure that all medications for your trip are always to hand whilst travelling.  Always include more than you think you may need to allow for delays or unexpected extensions to your trip. You could also source a pharmacy near to your location that will be able to supply extra medication, just in case!

Keep all medication in its original packaging, and sealed if possible, to avoid unwanted issues going through airport security.

How will you be travelling?


Car journeys needn’t be an issue, as you can turn it into a safe zone before you hit the road.  The upholstery and ventilation systems in a car can be breeding grounds for mould and dust mites. We recommend that they be treated with mould and dust mite killing solutions, such as Bio-Life Home Cleanse or Air Cleanse at least a couple of hours before you leave.

Try to keep windows closed and your air conditioning to “re-circulate” to lessen your exposure to outdoor allergens.


Ensure all allergy medication is included in your carry-on bag, as you might well need them, even during short flights. Remember to check you have enough with you for your entire travelling time in case of lost luggage.

Flight cabins hold very dry air and can aggravate nasal allergies. Remember to pack a sinus nasal spray or chew gum and drink plenty of liquids to help clear nasal passages.


Always ensure that your ship offers medical care on board, particularly if it will be a long journey.

It is always advised to research your destination thoroughly ahead of travel time. Colder climates contain dry air which can aggravate respiratory problems, whereas warm and humid climates hold more pollen and mould.

Staying in Hotels

We don’t want to think about it but every hotel is used by a large volume of people and so many are prime locations for dust mites.

Some hotels now offer allergy-friendly rooms, with air purifiers and allergy-friendly encasements on their bedding.  Whilst booking ask if this is the case and ensure you are given an allergy-friendly room.  (See for more info)

However many hotels do not offer this and so an alternative is to not leave home without your own encasements.

The same encasements you use on your own beds at home year-round, for pillows, duvets and mattresses can be brought along with you and will not take up much of your packing space. This will ensure you get a good night’s sleep.

Products we recommend:

If staying for a prolonged period, or for serious allergies, we would recommend bringing an air purifier for hotels/rented house stays. We would recommend the AirFree range, as they are particularly compact, but still very powerful at sterilising allergens out of the air.

Ensure to call or email ahead to the hotel to ask for bed sizes, so that you can ensure you bring the correct size of pillow or mattress protectors or encasements.

If possible, also request for rooms furthest away from any indoor pools. Close proximity to pools will mean more moisture in walls and air vents.

Find out more about travelling with allergies at Allergy UK.

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