Yes. Dust mites do not drink. They absorb the water they need straight from the air, and they can only do that when humidity is above 50%. Hold the room below that and they dehydrate and die, and the survivors stop breeding. Research found dust mites die within 6 to 11 days at 50% humidity or below, and a 17 month home study by Wright State University in Ohio recorded around 98% fewer live mites in homes kept under 51%.

They do two different jobs. Protectors seal in the mites and allergens already inside your mattress, pillows and duvet. The dehumidifier deals with everything you cannot zip a cover around: carpets, sofas, curtains, soft toys and the air itself.

It is step two in the plan Richard gives every customer on the phone: protect the bed first, then keep the room below 50% humidity.

Start with the bed. You spend around 8 hours a night with your face inches from your mattress and pillows, so sealing those gives the fastest relief. The dehumidifier then stops the rest of the room re-stocking your bed with dust mites. If you can, do both together. The Dehumidifier + Seal The Bed bundle above takes 10% off both.

Rooms up to 30m². A typical UK master bedroom is around 20m², so one unit covers it comfortably. Keep the door and windows closed while it runs so it is drying your bedroom and not the whole house.

Anywhere with a little space around it so air can circulate, ideally not pushed into a corner or behind furniture. Near the bed is fine, and many customers keep it on the floor beside a bedside table. Keep the door and windows closed and it will pull the whole room down to 50%.

Leave it on around the clock. It is pre-set to 50% and switches itself off when the room gets there, then back on when humidity creeps up. That matters because dust mites recover quickly if the air turns damp again, so steady control beats a few hours here and there.

Yes, it was chosen for bedrooms and has a sleep mode for overnight use. One verified customer described it as humming very softly at night. If you are a very light sleeper, run it through the day with the door shut and use sleep mode overnight.

The tank holds 2.2 litres and the unit removes up to around 1 litre a day depending on how damp the room is, so expect to empty it every two to three days at first and less often once the room is dry. It switches off automatically when full and restarts once the tank is back in. Prefer not to think about it? Fit the included drain hose for continuous draining.

It uses 65W, about the same as an old-style light bulb. Even running flat out for 24 hours that is around 1.5 units of electricity, and because it switches off once the room reaches 50% the real figure is lower.

No. It stops at 50%, which sits inside the 30 to 50% range NHS allergy clinics recommend for dust mite allergy. That is dry enough to kill dust mites and still comfortable for skin, eyes and airways.

Yes, within one room. It is sized for a bedroom up to 30m² and holds that room at 50% with the door closed. It is not designed to dry out a whole damp house, so if you have several problem rooms, treat the bedroom first because that is where you spend 8 hours a night, and use the drain hose so you are not emptying the tank daily.

Dust mite allergens are one of the most common triggers for eczema flare-ups and night-time asthma, and dust mites breed fastest in damp rooms. Customers tell us the itching eases and the night-time coughing settles once the humidity is under control. It works best alongside bed protectors, and it is not a replacement for any medication your doctor has prescribed.

The air feels fresher within a day or two. Dust mites begin dying off within the first one to two weeks, and most people notice clearer mornings and calmer skin over the first month as allergen levels fall.

No. The dust filter is washable. Rinse it under the tap about once a month, let it dry and slide it back in. There are no replacement filters to buy.

No ozone, no chemicals and no sprays. It simply removes water from the air.

Yes. Drier air means less condensation on windows and fewer musty smells, and mould is another common allergy trigger that needs damp air to grow.

The dehumidifier with a UK plug, a remote control with battery included, and a drain hose for optional continuous draining. The unit stands 38cm tall and 25cm wide.

Order before 3pm Monday to Friday for same-day dispatch and free next-day UK delivery. Every unit carries a 1 year warranty, and you have 30 days to return it unused in its original packaging with a free prepaid UK label. Questions first? Email hello@idustmite.com, use live chat, or call us on 0330 122 1646.