there were no mainstream vacuum cleaners with a "laser that shows invisible dust" available on the market. However, technology and product offerings are continuously evolving, so it's possible that new vacuum cleaner features have emerged since then.
If such a vacuum cleaner with a laser to show invisible dust does exist, the potential benefits could be as follows:
Enhanced Cleaning: A laser that illuminates invisible dust particles could help you identify areas that need more thorough cleaning. It might be particularly useful for people with allergies or respiratory sensitivities who want to ensure they remove as much dust and debris as possible from their living spaces.
Improved Efficiency: Being able to see where dust and dirt accumulate, even if they are not visible to the naked eye, could improve cleaning efficiency by allowing you to focus on the areas that need the most attention.
Easier Spot Cleaning: The laser could assist in spotting specific spots or hidden areas that tend to collect dust, making it easier to target those places and keep your home cleaner.
Visualization of Cleaning Effectiveness: The laser could serve as a visual indicator of how effective your cleaning efforts are. Being able to see the before and after results could be satisfying and motivating.
While these potential benefits might be appealing, it's essential to consider the overall performance, build quality, and reliability of the vacuum cleaner itself. The presence of a laser is just one feature, and you should assess the vacuum's cleaning power, maneuverability, battery life (if cordless), filter efficiency, and user reviews before making a decision.
Before purchasing any new and innovative vacuum cleaner feature, it's a good idea to thoroughly research the product, read user reviews, and even try to see it in action if possible. Always make sure to buy from reputable brands or retailers to ensure you're getting a quality product that meets your needs.