UV-C lamp fitted inside the split 'against mould' – worth it for an asthmatic?

Editorial guide · Updated 18 September 2026

In short: For a person with asthma or another respiratory condition, comfort settings and exposure concerns should be discussed with their clinician. A change in symptoms does not establish that the appliance is the cause. Visible dampness, mould, an unusual smell or blocked filters justify a technical inspection, separately from medical care.

This page explains a situation in an editorial format. It is not an open discussion board or a verified customer review. Contact us on WhatsApp about your own appliance.

Situation discussed

Drumul Taberei, Râul Doamnei street, 12,000 BTU LG, 4 years old, my bedroom (allergic asthma). Sounds too good. What does the data say? See current rates on the Prices page.

Editorial explanation · Revizie AC

What is really happening

For a person with asthma or another respiratory condition, comfort settings and exposure concerns should be discussed with their clinician. A change in symptoms does not establish that the appliance is the cause. Visible dampness, mould, an unusual smell or blocked filters justify a technical inspection, separately from medical care.

Two assessments with different roles — The unit and indoor environment: technical inspection, moisture, deposits and maintenance.
Symptoms and diagnosis: assessment by a medical professional.
A unit problem does not establish the cause of an illness. Maintenance does not replace medical care.

What the studies say

UV-C mounted on the coil cuts microbes on irradiated surfaces by up to 99%, but health-benefit evidence is inconsistent and it does not replace cleaning. [LBNL Indoor Air Quality Scientific Findi, 2023]
UV disinfection of cooling coils and drain pans in offices cut surface microbes by about 99% and workers' symptoms by about 20–40%. [The Lancet, 2003]
Methylobacterium, the dominant bacterium in evaporator biofilm, is a strong biofilm former resistant to UV, desiccation and heat/cold shock. [mSphere (ASM) / PubMed Central, 2020]
Mould remains allergenic even when dead, so merely 'killing' it with a spray does not solve the problem – it must be physically removed. [US EPA, 2024]

What we do on site

Full sanitising first: collection cover, cleaning solution, pressure wash in place of evaporator, roller, pan, sanitising solution.
Outdoor unit, washed in place.
We show you the roller – the place the lamp would never reach anyway.
See current rates on the Prices page.

What you can do yourself

See current rates on the Prices page.
25–26 °C, louvre up, filters every two weeks, 'Fan' before shut-off.

What NOT to do

Do not accept 'no more sanitising needed' from anyone, for any gadget.
Do not look directly at a UV-C lamp if you already have one – corneal burns.
Do not let a company drill the housing for cables – you ruin the pan seal.

Prevention

Plan maintenance according to the appliance manual and what is found during inspection. Keep any medical follow-up separate; cleaning does not guarantee that symptoms will resolve.

When to call us

0764 012 943, Monday–Saturday 08:00–20:00. Drumul Taberei.

Pregnant woman resting in a bright bedroom with a clean air conditioner on the wall

Maintenance does not replace medical care. CDC: mold and health · EPA: moisture and mould

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Sources (9)

The information on this page is educational and based on cited sources; it does not replace medical advice. We do not do repairs, installation or refrigerant circuit work.