A strange odor comes out of the air outlet as well as the filter.
Did you purchase the product recently?
This is the odor of activated charcoal, and is not harmful. This is similar to the odor you may experience in a brand new car. It will go away within a day following use.
Is the product used in a place with a lot of smoke or odors?
If the air purifier is operated after an air freshener, diffuser, or scented candle has been used, or interior work or wallpaper replacement have occurred, the filter may absorb and emit an odor. Ventilate the room first before using the product.
Does the filter have a bad smell?
The filter replacement cycle may vary depending on the usage environment. If there is an odor, replace the filter with a new one.
Is it in an environment in which food is prepared?
If you use the product for a long period of time where you cook or broil fish/meat, the filter lifespan may be significantly decreased.
If possible, open a window for ventilation while cooking, and use the product to remove any odors left following ventilation.
Is it a humid environment?
The filter may emit an odor if used in a humid environment. Dry the filter in sunlight before use.