Advantages: Can get rid of formaldehyde, smoke, and color with their 73.1 million negative ions released every second. In 24 hours, 5.2% of formaldehyde can be removed. It can be placed in places like toilets, kitchens, smoking areas, and other places with odor. It is durable, has a power-saving scheme, and compact.
Disadvantages: Needs a power socket to be turned on, needs a specific plug and socket. Will be not as efficient as something bigger.
