Allergic child, unit in his bedroom – does it really need twice a year?

What is really happening

The mould genera dominant in split units – Cladosporium, Alternaria, Aspergillus – are exactly those in allergy tests, and at start-up a contaminated unit can raise room spores from under a thousand to tens of thousands per cubic metre. In children, home dampness and mould are associated with more respiratory infections and symptoms. A unit cleaned in May is clean in June; in August, after 60 nights of condensation, it no longer is – hence the second visit. The second thing a clean unit does for a mite-allergic child: it dehumidifies better, and mites decline below 50% humidity.

Explanatory diagramMaintenance follows actual use

What we do on site

1. Visit 1 (May): sealed double cover, foil on bed and toys, alkaline detergent, adjustable pressure wash of evaporator, roller, pan and hose; chlorine-free, fragrance-free sanitising; filters; outdoor unit in place; drying on 'Fan' with the window open.
2. Visit 2 (late July): same protocol – faster, the unit is less dirty; we usually combine it with another unit in the house so you do not need two bookings.
3. At both: before/after photos on WhatsApp, so you see how much rebuilt between visits and we adjust the rhythm next year.
4. See current rates on the Prices page.

What you can do yourself

• Filters weekly in July–August (2 minutes).
• 'Fan' for 30 minutes in the morning, window open, before switching off.
• Set 24–25 °C, not 20 – less condensation, less biofilm.
• Hygrometer in the room: under 50% for mites.

What NOT to do

Prevention

Allergic child + unit at night: May + late July, every year; if symptoms clearly drop, discuss with the doctor whether to keep this rhythm or increase it.

When to call us

0764 012 943, WhatsApp, Monday–Saturday 08:00–20:00; Colentina is 20 minutes away; we book both visits at once.