Dutch installation industry association Techniek Nederland has issued a warning regarding misleading online listings for summer cooling devices. The group says consumers are increasingly buying cheap portable units advertised as air conditioners, only to find they offer minimal cooling.
Many of these products are actually air coolers or simple fans. Unlike genuine air conditioners, they do not have the mechanism required to lower room temperatures effectively.
How real cooling systems work
A true air conditioner cools an indoor space by removing heat and venting it outside. Permanent wall systems rely on a dedicated outdoor unit, while portable models use a thick exhaust hose routed through a window or door.
Climate technology specialists point out that without a hose or external unit, heat cannot leave the building. Devices that rely solely on water or ice packs can slightly cool the air passing directly through them, but they also raise humidity inside the room.
A loophole in trade terminology
The rise in deceptive online sales is partly enabled by a gap in trade regulation. The term “airco” is not legally protected under Dutch law, allowing online retailers to use it freely in product titles and search tags.
Webshops regularly use the label on low-cost water evaporators and basic desk fans to attract web traffic during warm spells.
Representatives from Techniek Nederland advise buyers to double-check product specifications before ordering, noting that any listing claiming to offer hose-free air conditioning should be treated with caution.

