Air purifiers list their air filtration capabilities in terms of room size and frequency of air exchanges, sometimes listed as clean air delivery rate (CADR) or you may see a number for cubic feet per minute (CFM). A smaller unit might say it can exchange the air in a 500-square-foot room twice per hour. So that model should be able to pass all of the air in a 250-square-foot room through the filter every 15 minutes, but a 1,000-square-foot room would probably be outside its effective range. Of course, there’s no standard for manufacturers to adhere to when it comes to these calculations, but typically, larger air purifiers can handle large rooms.
Featured Video For You
。业内人士推荐新收录的资料作为进阶阅读
Что думаешь? Оцени!
https://feedx.site
当前，恒道科技的资金链并不算雄厚。那么，为何公司不是以增资方式引入外部投资者，而是王洪潮借机套现数千万？公司计划如何充裕现金流？对此，「创业最前线」试图向恒道科技方面进行了解，但截至发稿仍未获回复。