According to a survey conducted in March 2021, the majority of respondents in Japan, close to ** percent, claimed to clean their ventilation fan and range hood about once a year. Nearly ten percent of participants admitted to not clean their extractor at all.
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Planet, Inc.. (April 26, 2021). Frequency of cleaning kitchen extractor fans and range hoods in Japan as of March 2021 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 24, 2026, from /statistics/1241706/japan-extractor-fan-range-hood-cleaning-frequency/
Planet, Inc.. "Frequency of cleaning kitchen extractor fans and range hoods in Japan as of March 2021." Chart. April 26, 2021. ÌÇÐÄÆƽâ°æ. Accessed July 24, 2026. /statistics/1241706/japan-extractor-fan-range-hood-cleaning-frequency/
Planet, Inc.. (2021). Frequency of cleaning kitchen extractor fans and range hoods in Japan as of March 2021. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 24, 2026. /statistics/1241706/japan-extractor-fan-range-hood-cleaning-frequency/
Planet, Inc.. "Frequency of Cleaning Kitchen Extractor Fans and Range Hoods in Japan as of March 2021." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 26 Apr 2021, /statistics/1241706/japan-extractor-fan-range-hood-cleaning-frequency/
Planet, Inc., Frequency of cleaning kitchen extractor fans and range hoods in Japan as of March 2021 ÌÇÐÄÆƽâ°æ, /statistics/1241706/japan-extractor-fan-range-hood-cleaning-frequency/ (last visited July 24, 2026)
Frequency of cleaning kitchen extractor fans and range hoods in Japan as of March 2021 [Graph], Planet, Inc., April 26, 2021. [Online]. Available: /statistics/1241706/japan-extractor-fan-range-hood-cleaning-frequency/
