Dyson Pure Cool Air Purifier

Dyson Pure Cool is an air purifier and fan combined into a bladeless tower that looks like a portal from a science fiction film. A tall oval ring with no visible moving parts that produces a smooth column of air without the choppy buffeting of a traditional fan. Air quality sensor on the back detects particulates and volatile organic compounds and displays the readings on a small LCD screen. Auto mode adjusts fan speed in response to real-time air quality, ramping up when someone cooks or opens a window and slowing down when the air clears. Got 1 for my apartment after noticing that the pollen count in spring made my allergies unbearable. HEPA filter catches 99.97% of particles down to 0.3 microns, which includes pollen, dust mites, and most bacteria. Dyson app shows a graph of air quality over time, and I can see the spikes when I cook with oil and the gradual decline as the filter runs. Price is $450, and the replacement HEPA filter costs $70 and needs swapping every 12 months, so the total cost of ownership after 3 years is over $650. Design is undeniably striking, the bladeless ring and the slim pedestal making it look like sculpture, and visitors comment on it more than any other object in my apartment. Nighttime mode dims the display and reduces noise to a whisper, and the sleep quality improvement from filtered air and consistent white noise has been noticeable. Engineering is impressive but the price excludes most of the people who need air purification most, those in high-pollution areas with lower incomes. A functional version without the design premium would put the technology within reach of a much larger group.