The Advertising Standards Authority (ASA) has issued a stern warning to consumers regarding a surge in misleading online adverts for portable air conditioners. These adverts, frequently appearing on platforms such as Facebook and YouTube, often make exaggerated claims, including the ability to cool an entire room in as little as 90 seconds or being designed by 'former Nasa engineers'. The ASA has cautioned that such promises are typically "too good to be true", particularly as parts of the UK prepare for another spell of hot weather.
Many of the advertised devices, which typically retail for between £70 and £120, have been exposed as simple fans or 'swamp coolers' – devices that cool air through water evaporation. While these can offer some relief in hot, dry climates, they are significantly less effective in the UK's often humid conditions, and crucially, do not function as conventional air conditioners that remove heat from a room. Content creator Stuart Matthews, who purchased and tested several of these devices for his 'Proper DIY' channel, reported that a machine costing £70 was merely "a small, simple fan worth only a few pounds", containing "a load of cardboard fins that get wet as the water blows past them" instead of sophisticated cooling cartridges.
The ASA highlighted several red flags for consumers to watch out for. These include promises that seem unrealistic, such as a small device cooling a large room rapidly, and dramatic backstories involving "secret inventions" or "industry breakthroughs". Adverts with poor grammar, spelling mistakes, inconsistent branding, or customer reviews that appear overly perfect or describe dramatic, instant results should also be viewed with scepticism. Many of these adverts also utilise AI-generated visuals, featuring images of copper coils and metallic boxes to give a false impression of advanced technology.
To avoid falling victim to these deceptive marketing tactics, the ASA recommends that consumers conduct thorough research into retailers, ensuring they provide genuine contact details and a verifiable business address. Relying on independent reviews from third-party sources, rather than solely on testimonials presented on the seller's own website, is also crucial. The watchdog affirmed its commitment to taking action against advertisers breaking the rules, but acknowledged that the transient nature of some of the businesses involved means enforcement alone cannot entirely eradicate the problem.
While the ASA regulates paid-for advertisements on major platforms, it does not possess the power to issue fines. Its role is primarily to ensure that advertising in the UK is responsible, truthful, and not misleading. Consumers who encounter adverts they believe to be misleading are encouraged to report them directly to the ASA via their website, contributing to the ongoing effort to protect the public from fraudulent claims.